77 files changed, 372 insertions, 294 deletions

diff --git a/application/History.php b/application/History.php
index bd5c1bf7..d230f39d 100644
--- a/application/History.php
+++ b/application/History.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli;
 
 use DateTime;
@@ -31,27 +32,27 @@ class History
     /**
      * @var string Action key: a new link has been created.
      */
-    const CREATED = 'CREATED';
+    public const CREATED = 'CREATED';
 
     /**
      * @var string Action key: a link has been updated.
      */
-    const UPDATED = 'UPDATED';
+    public const UPDATED = 'UPDATED';
 
     /**
      * @var string Action key: a link has been deleted.
      */
-    const DELETED = 'DELETED';
+    public const DELETED = 'DELETED';
 
     /**
      * @var string Action key: settings have been updated.
      */
-    const SETTINGS = 'SETTINGS';
+    public const SETTINGS = 'SETTINGS';
 
     /**
      * @var string Action key: a bulk import has been processed.
      */
-    const IMPORT = 'IMPORT';
+    public const IMPORT = 'IMPORT';
 
     /**
      * @var string History file path.
diff --git a/application/Languages.php b/application/Languages.php
index d83e0765..60e91631 100644
--- a/application/Languages.php
+++ b/application/Languages.php
@@ -41,7 +41,7 @@ class Languages
     /**
      * Core translations domain
      */
-    const DEFAULT_DOMAIN = 'shaarli';
+    public const DEFAULT_DOMAIN = 'shaarli';
 
     /**
      * @var TranslatorInterface
@@ -76,7 +76,8 @@ class Languages
             $this->language = $confLanguage;
         }
 
-        if (! extension_loaded('gettext')
+        if (
+            ! extension_loaded('gettext')
             || in_array($this->conf->get('translation.mode', 'auto'), ['auto', 'php'])
         ) {
             $this->initPhpTranslator();
@@ -98,7 +99,7 @@ class Languages
         $this->translator->loadDomain(self::DEFAULT_DOMAIN, 'inc/languages');
 
         // Default extension translation from the current theme
-        $themeTransFolder = rtrim($this->conf->get('raintpl_tpl'), '/') .'/'. $this->conf->get('theme') .'/language';
+        $themeTransFolder = rtrim($this->conf->get('raintpl_tpl'), '/') . '/' . $this->conf->get('theme') . '/language';
         if (is_dir($themeTransFolder)) {
             $this->translator->loadDomain($this->conf->get('theme'), $themeTransFolder, false);
         }
@@ -121,7 +122,9 @@ class Languages
         $translations = new Translations();
         // Core translations
         try {
-            $translations = $translations->addFromPoFile('inc/languages/'. $this->language .'/LC_MESSAGES/shaarli.po');
+            $translations = $translations->addFromPoFile(
+                'inc/languages/' . $this->language . '/LC_MESSAGES/shaarli.po'
+            );
             $translations->setDomain('shaarli');
             $this->translator->loadTranslations($translations);
         } catch (\InvalidArgumentException $e) {
@@ -129,11 +132,11 @@ class Languages
 
         // Default extension translation from the current theme
         $theme = $this->conf->get('theme');
-        $themeTransFolder = rtrim($this->conf->get('raintpl_tpl'), '/') .'/'. $theme .'/language';
+        $themeTransFolder = rtrim($this->conf->get('raintpl_tpl'), '/') . '/' . $theme . '/language';
         if (is_dir($themeTransFolder)) {
             try {
                 $translations = Translations::fromPoFile(
-                    $themeTransFolder .'/'. $this->language .'/LC_MESSAGES/'. $theme .'.po'
+                    $themeTransFolder . '/' . $this->language . '/LC_MESSAGES/' . $theme . '.po'
                 );
                 $translations->setDomain($theme);
                 $this->translator->loadTranslations($translations);
@@ -149,7 +152,7 @@ class Languages
 
             try {
                 $extension = Translations::fromPoFile(
-                    $translationPath . $this->language .'/LC_MESSAGES/'. $domain .'.po'
+                    $translationPath . $this->language . '/LC_MESSAGES/' . $domain . '.po'
                 );
                 $extension->setDomain($domain);
                 $this->translator->loadTranslations($extension);
diff --git a/application/Thumbnailer.php b/application/Thumbnailer.php
index 5aec23c8..c4ff8d7a 100644
--- a/application/Thumbnailer.php
+++ b/application/Thumbnailer.php
@@ -13,7 +13,7 @@ use WebThumbnailer\WebThumbnailer;
  */
 class Thumbnailer
 {
-    const COMMON_MEDIA_DOMAINS = [
+    protected const COMMON_MEDIA_DOMAINS = [
         'imgur.com',
         'flickr.com',
         'youtube.com',
@@ -31,9 +31,9 @@ class Thumbnailer
         'deviantart.com',
     ];
 
-    const MODE_ALL = 'all';
-    const MODE_COMMON = 'common';
-    const MODE_NONE = 'none';
+    public const MODE_ALL = 'all';
+    public const MODE_COMMON = 'common';
+    public const MODE_NONE = 'none';
 
     /**
      * @var WebThumbnailer instance.
@@ -60,7 +60,7 @@ class Thumbnailer
             // TODO: create a proper error handling system able to catch exceptions...
             die(t(
                 'php-gd extension must be loaded to use thumbnails. '
-                .'Thumbnails are now disabled. Please reload the page.'
+                . 'Thumbnails are now disabled. Please reload the page.'
             ));
         }
 
@@ -81,7 +81,8 @@ class Thumbnailer
      */
     public function get($url)
     {
-        if ($this->conf->get('thumbnails.mode') === self::MODE_COMMON
+        if (
+            $this->conf->get('thumbnails.mode') === self::MODE_COMMON
             && ! $this->isCommonMediaOrImage($url)
         ) {
             return false;
diff --git a/application/TimeZone.php b/application/TimeZone.php
index c1869ef8..a420eb96 100644
--- a/application/TimeZone.php
+++ b/application/TimeZone.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * Generates a list of available timezone continents and cities.
  *
@@ -43,7 +44,7 @@ function generateTimeZoneData($installedTimeZones, $preselectedTimezone = '')
         // Try to split the provided timezone
         $spos = strpos($preselectedTimezone, '/');
         $pcontinent = substr($preselectedTimezone, 0, $spos);
-        $pcity = substr($preselectedTimezone, $spos+1);
+        $pcity = substr($preselectedTimezone, $spos + 1);
     }
 
     $continents = [];
@@ -60,7 +61,7 @@ function generateTimeZoneData($installedTimeZones, $preselectedTimezone = '')
         }
 
         $continent = substr($tz, 0, $spos);
-        $city = substr($tz, $spos+1);
+        $city = substr($tz, $spos + 1);
         $cities[] = ['continent' => $continent, 'city' => $city];
         $continents[$continent] = true;
     }
@@ -85,7 +86,7 @@ function generateTimeZoneData($installedTimeZones, $preselectedTimezone = '')
 function isTimeZoneValid($continent, $city)
 {
     return in_array(
-        $continent.'/'.$city,
+        $continent . '/' . $city,
         timezone_identifiers_list()
     );
 }
diff --git a/application/Utils.php b/application/Utils.php
index db046893..952378ab 100644
--- a/application/Utils.php
+++ b/application/Utils.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * Shaarli utilities
  */
@@ -102,7 +103,7 @@ function escape($input)
     }
 
     if (is_array($input)) {
-        $out = array();
+        $out = [];
         foreach ($input as $key => $value) {
             $out[escape($key)] = escape($value);
         }
@@ -163,7 +164,7 @@ function checkDateFormat($format, $string)
  *
  * @return string $referer - final referer.
  */
-function generateLocation($referer, $host, $loopTerms = array())
+function generateLocation($referer, $host, $loopTerms = [])
 {
     $finalReferer = './?';
 
@@ -196,7 +197,7 @@ function generateLocation($referer, $host, $loopTerms = array())
 function autoLocale($headerLocale)
 {
     // Default if browser does not send HTTP_ACCEPT_LANGUAGE
-    $locales = array('en_US', 'en_US.utf8', 'en_US.UTF-8');
+    $locales = ['en_US', 'en_US.utf8', 'en_US.UTF-8'];
     if (! empty($headerLocale)) {
         if (preg_match_all('/([a-z]{2,3})[-_]?([a-z]{2})?,?/i', $headerLocale, $matches, PREG_SET_ORDER)) {
             $attempts = [];
@@ -376,13 +377,15 @@ function return_bytes($val)
         return $val;
     }
     $val = trim($val);
-    $last = strtolower($val[strlen($val)-1]);
+    $last = strtolower($val[strlen($val) - 1]);
     $val = intval(substr($val, 0, -1));
     switch ($last) {
         case 'g':
             $val *= 1024;
+        // do no break in order 1024^2 for each unit
         case 'm':
             $val *= 1024;
+        // do no break in order 1024^2 for each unit
         case 'k':
             $val *= 1024;
     }
@@ -482,7 +485,9 @@ function alphabetical_sort(&$data, $reverse = false, $byKeys = false)
  */
 function t($text, $nText = '', $nb = 1, $domain = 'shaarli', $variables = [], $fixCase = false)
 {
-    $postFunction = $fixCase ? 'ucfirst' : function ($input) { return $input; };
+    $postFunction = $fixCase ? 'ucfirst' : function ($input) {
+        return $input;
+    };
 
     return $postFunction(dn__($domain, $text, $nText, $nb, $variables));
 }
@@ -494,4 +499,3 @@ function exception2text(Throwable $e): string
 {
     return $e->getMessage() . PHP_EOL . $e->getFile() . $e->getLine() . PHP_EOL . $e->getTraceAsString();
 }
-
diff --git a/application/api/ApiMiddleware.php b/application/api/ApiMiddleware.php
index adc8b266..9fb88358 100644
--- a/application/api/ApiMiddleware.php
+++ b/application/api/ApiMiddleware.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Api;
 
 use malkusch\lock\mutex\FlockMutex;
@@ -108,7 +109,8 @@ class ApiMiddleware
      */
     protected function checkToken($request)
     {
-        if (!$request->hasHeader('Authorization')
+        if (
+            !$request->hasHeader('Authorization')
             && !isset($this->container->environment['REDIRECT_HTTP_AUTHORIZATION'])
         ) {
             throw new ApiAuthorizationException('JWT token not provided');
diff --git a/application/api/ApiUtils.php b/application/api/ApiUtils.php
index eb1ca9bc..05a2840a 100644
--- a/application/api/ApiUtils.php
+++ b/application/api/ApiUtils.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Api;
 
 use Shaarli\Api\Exceptions\ApiAuthorizationException;
@@ -27,7 +28,7 @@ class ApiUtils
             throw new ApiAuthorizationException('Malformed JWT token');
         }
 
-        $genSign = Base64Url::encode(hash_hmac('sha512', $parts[0] .'.'. $parts[1], $secret, true));
+        $genSign = Base64Url::encode(hash_hmac('sha512', $parts[0] . '.' . $parts[1], $secret, true));
         if ($parts[2] != $genSign) {
             throw new ApiAuthorizationException('Invalid JWT signature');
         }
@@ -42,7 +43,8 @@ class ApiUtils
             throw new ApiAuthorizationException('Invalid JWT payload');
         }
 
-        if (empty($payload->iat)
+        if (
+            empty($payload->iat)
             || $payload->iat > time()
             || time() - $payload->iat > ApiMiddleware::$TOKEN_DURATION
         ) {
diff --git a/application/api/controllers/HistoryController.php b/application/api/controllers/HistoryController.php
index 505647a9..d83a3a25 100644
--- a/application/api/controllers/HistoryController.php
+++ b/application/api/controllers/HistoryController.php
@@ -1,6 +1,5 @@
 <?php
 
-
 namespace Shaarli\Api\Controllers;
 
 use Shaarli\Api\Exceptions\ApiBadParametersException;
diff --git a/application/api/controllers/Info.php b/application/api/controllers/Info.php
index 12f6b2f0..ae7db93e 100644
--- a/application/api/controllers/Info.php
+++ b/application/api/controllers/Info.php
@@ -29,13 +29,13 @@ class Info extends ApiController
         $info = [
             'global_counter' => $this->bookmarkService->count(),
             'private_counter' => $this->bookmarkService->count(BookmarkFilter::$PRIVATE),
-            'settings' => array(
+            'settings' => [
                 'title' => $this->conf->get('general.title', 'Shaarli'),
                 'header_link' => $this->conf->get('general.header_link', '?'),
                 'timezone' => $this->conf->get('general.timezone', 'UTC'),
                 'enabled_plugins' => $this->conf->get('general.enabled_plugins', []),
                 'default_private_links' => $this->conf->get('privacy.default_private_links', false),
-            ),
+            ],
         ];
 
         return $response->withJson($info, 200, $this->jsonStyle);
diff --git a/application/api/controllers/Links.php b/application/api/controllers/Links.php
index 6bf529e4..c379b962 100644
--- a/application/api/controllers/Links.php
+++ b/application/api/controllers/Links.php
@@ -119,7 +119,8 @@ class Links extends ApiController
         $data = (array) ($request->getParsedBody() ?? []);
         $bookmark = ApiUtils::buildBookmarkFromRequest($data, $this->conf->get('privacy.default_private_links'));
         // duplicate by URL, return 409 Conflict
-        if (! empty($bookmark->getUrl())
+        if (
+            ! empty($bookmark->getUrl())
             && ! empty($dup = $this->bookmarkService->findByUrl($bookmark->getUrl()))
         ) {
             return $response->withJson(
@@ -159,7 +160,8 @@ class Links extends ApiController
 
         $requestBookmark = ApiUtils::buildBookmarkFromRequest($data, $this->conf->get('privacy.default_private_links'));
         // duplicate URL on a different link, return 409 Conflict
-        if (! empty($requestBookmark->getUrl())
+        if (
+            ! empty($requestBookmark->getUrl())
             && ! empty($dup = $this->bookmarkService->findByUrl($requestBookmark->getUrl()))
             && $dup->getId() != $id
         ) {
diff --git a/application/api/exceptions/ApiAuthorizationException.php b/application/api/exceptions/ApiAuthorizationException.php
index 0e3f4776..c77e9eea 100644
--- a/application/api/exceptions/ApiAuthorizationException.php
+++ b/application/api/exceptions/ApiAuthorizationException.php
@@ -28,7 +28,7 @@ class ApiAuthorizationException extends ApiException
      */
     public function setMessage($message)
     {
-        $original = $this->debug === true ? ': '. $this->getMessage() : '';
+        $original = $this->debug === true ? ': ' . $this->getMessage() : '';
         $this->message = $message . $original;
     }
 }
diff --git a/application/api/exceptions/ApiException.php b/application/api/exceptions/ApiException.php
index d6b66323..7deafb96 100644
--- a/application/api/exceptions/ApiException.php
+++ b/application/api/exceptions/ApiException.php
@@ -44,7 +44,7 @@ abstract class ApiException extends \Exception
         }
         return [
             'message' => $this->getMessage(),
-            'stacktrace' => get_class($this) .': '. $this->getTraceAsString()
+            'stacktrace' => get_class($this) . ': ' . $this->getTraceAsString()
         ];
     }
 
diff --git a/application/bookmark/Bookmark.php b/application/bookmark/Bookmark.php
index 8aaeb9d8..4238ef25 100644
--- a/application/bookmark/Bookmark.php
+++ b/application/bookmark/Bookmark.php
@@ -19,7 +19,7 @@ use Shaarli\Bookmark\Exception\InvalidBookmarkException;
 class Bookmark
 {
     /** @var string Date format used in string (former ID format) */
-    const LINK_DATE_FORMAT = 'Ymd_His';
+    public const LINK_DATE_FORMAT = 'Ymd_His';
 
     /** @var int Bookmark ID */
     protected $id;
@@ -106,7 +106,8 @@ class Bookmark
      */
     public function validate(): void
     {
-        if ($this->id === null
+        if (
+            $this->id === null
             || ! is_int($this->id)
             || empty($this->shortUrl)
             || empty($this->created)
@@ -114,7 +115,7 @@ class Bookmark
             throw new InvalidBookmarkException($this);
         }
         if (empty($this->url)) {
-            $this->url = '/shaare/'. $this->shortUrl;
+            $this->url = '/shaare/' . $this->shortUrl;
         }
         if (empty($this->title)) {
             $this->title = $this->url;
diff --git a/application/bookmark/BookmarkArray.php b/application/bookmark/BookmarkArray.php
index 67bb3b73..b9328116 100644
--- a/application/bookmark/BookmarkArray.php
+++ b/application/bookmark/BookmarkArray.php
@@ -72,7 +72,8 @@ class BookmarkArray implements \Iterator, \Countable, \ArrayAccess
      */
     public function offsetSet($offset, $value)
     {
-        if (! $value instanceof Bookmark
+        if (
+            ! $value instanceof Bookmark
             || $value->getId() === null || empty($value->getUrl())
             || ($offset !== null && ! is_int($offset)) || ! is_int($value->getId())
             || $offset !== null && $offset !== $value->getId()
@@ -222,7 +223,8 @@ class BookmarkArray implements \Iterator, \Countable, \ArrayAccess
      */
     public function getByUrl(string $url): ?Bookmark
     {
-        if (! empty($url)
+        if (
+            ! empty($url)
             && isset($this->urls[$url])
             && isset($this->bookmarks[$this->urls[$url]])
         ) {
diff --git a/application/bookmark/BookmarkFileService.php b/application/bookmark/BookmarkFileService.php
index 85efeea6..6666a251 100644
--- a/application/bookmark/BookmarkFileService.php
+++ b/application/bookmark/BookmarkFileService.php
@@ -69,7 +69,7 @@ class BookmarkFileService implements BookmarkServiceInterface
         } else {
             try {
                 $this->bookmarks = $this->bookmarksIO->read();
-            } catch (EmptyDataStoreException|DatastoreNotInitializedException $e) {
+            } catch (EmptyDataStoreException | DatastoreNotInitializedException $e) {
                 $this->bookmarks = new BookmarkArray();
 
                 if ($this->isLoggedIn) {
@@ -85,7 +85,7 @@ class BookmarkFileService implements BookmarkServiceInterface
             if (! $this->bookmarks instanceof BookmarkArray) {
                 $this->migrate();
                 exit(
-                    'Your data store has been migrated, please reload the page.'. PHP_EOL .
+                    'Your data store has been migrated, please reload the page.' . PHP_EOL .
                     'If this message keeps showing up, please delete data/updates.txt file.'
                 );
             }
@@ -102,7 +102,8 @@ class BookmarkFileService implements BookmarkServiceInterface
         $bookmark = $this->bookmarkFilter->filter(BookmarkFilter::$FILTER_HASH, $hash);
         // PHP 7.3 introduced array_key_first() to avoid this hack
         $first = reset($bookmark);
-        if (!$this->isLoggedIn
+        if (
+            !$this->isLoggedIn
             && $first->isPrivate()
             && (empty($privateKey) || $privateKey !== $first->getAdditionalContentEntry('private_key'))
         ) {
@@ -165,7 +166,8 @@ class BookmarkFileService implements BookmarkServiceInterface
         }
 
         $bookmark = $this->bookmarks[$id];
-        if (($bookmark->isPrivate() && $visibility != 'all' && $visibility != 'private')
+        if (
+            ($bookmark->isPrivate() && $visibility != 'all' && $visibility != 'private')
             || (! $bookmark->isPrivate() && $visibility != 'all' && $visibility != 'public')
         ) {
             throw new Exception('Unauthorized');
@@ -265,7 +267,8 @@ class BookmarkFileService implements BookmarkServiceInterface
         }
 
         $bookmark = $this->bookmarks[$id];
-        if (($bookmark->isPrivate() && $visibility != 'all' && $visibility != 'private')
+        if (
+            ($bookmark->isPrivate() && $visibility != 'all' && $visibility != 'private')
             || (! $bookmark->isPrivate() && $visibility != 'all' && $visibility != 'public')
         ) {
             return false;
@@ -307,7 +310,8 @@ class BookmarkFileService implements BookmarkServiceInterface
         $caseMapping = [];
         foreach ($bookmarks as $bookmark) {
             foreach ($bookmark->getTags() as $tag) {
-                if (empty($tag)
+                if (
+                    empty($tag)
                     || (! $this->isLoggedIn && startsWith($tag, '.'))
                     || $tag === BookmarkMarkdownFormatter::NO_MD_TAG
                     || in_array($tag, $filteringTags, true)
@@ -356,7 +360,7 @@ class BookmarkFileService implements BookmarkServiceInterface
         foreach ($this->search([], null, false, false, true) as $bookmark) {
             if ($to < $bookmark->getCreated()) {
                 $next = $bookmark->getCreated();
-            } else if ($from < $bookmark->getCreated() && $to > $bookmark->getCreated()) {
+            } elseif ($from < $bookmark->getCreated() && $to > $bookmark->getCreated()) {
                 $out[] = $bookmark;
             } else {
                 if ($previous !== null) {
@@ -405,14 +409,14 @@ class BookmarkFileService implements BookmarkServiceInterface
             false
         );
         $updater = new LegacyUpdater(
-            UpdaterUtils::read_updates_file($this->conf->get('resource.updates')),
+            UpdaterUtils::readUpdatesFile($this->conf->get('resource.updates')),
             $bookmarkDb,
             $this->conf,
             true
         );
         $newUpdates = $updater->update();
         if (! empty($newUpdates)) {
-            UpdaterUtils::write_updates_file(
+            UpdaterUtils::writeUpdatesFile(
                 $this->conf->get('resource.updates'),
                 $updater->getDoneUpdates()
             );
diff --git a/application/bookmark/BookmarkFilter.php b/application/bookmark/BookmarkFilter.php
index 5d8733dc..db83c51c 100644
--- a/application/bookmark/BookmarkFilter.php
+++ b/application/bookmark/BookmarkFilter.php
@@ -150,7 +150,7 @@ class BookmarkFilter
             return $this->bookmarks;
         }
 
-        $out = array();
+        $out = [];
         foreach ($this->bookmarks as $key => $value) {
             if ($value->isPrivate() && $visibility === 'private') {
                 $out[$key] = $value;
@@ -395,7 +395,7 @@ class BookmarkFilter
             $search = $link->getTagsString($tagsSeparator);
             if (strlen(trim($link->getDescription())) && strpos($link->getDescription(), '#') !== false) {
                 // description given and at least one possible tag found
-                $descTags = array();
+                $descTags = [];
                 // find all tags in the form of #tag in the description
                 preg_match_all(
                     '/(?<![' . self::$HASHTAG_CHARS . '])#([' . self::$HASHTAG_CHARS . ']+?)\b/sm',
@@ -552,10 +552,10 @@ class BookmarkFilter
     protected function buildFullTextSearchableLink(Bookmark $link, array &$lengths): string
     {
         $tagString = $link->getTagsString($this->conf->get('general.tags_separator', ' '));
-        $content  = mb_convert_case($link->getTitle(), MB_CASE_LOWER, 'UTF-8') .'\\';
-        $content .= mb_convert_case($link->getDescription(), MB_CASE_LOWER, 'UTF-8') .'\\';
-        $content .= mb_convert_case($link->getUrl(), MB_CASE_LOWER, 'UTF-8') .'\\';
-        $content .= mb_convert_case($tagString, MB_CASE_LOWER, 'UTF-8') .'\\';
+        $content  = mb_convert_case($link->getTitle(), MB_CASE_LOWER, 'UTF-8') . '\\';
+        $content .= mb_convert_case($link->getDescription(), MB_CASE_LOWER, 'UTF-8') . '\\';
+        $content .= mb_convert_case($link->getUrl(), MB_CASE_LOWER, 'UTF-8') . '\\';
+        $content .= mb_convert_case($tagString, MB_CASE_LOWER, 'UTF-8') . '\\';
 
         $lengths['title'] = ['start' => 0, 'end' => mb_strlen($link->getTitle())];
         $nextField = $lengths['title']['end'] + 1;
diff --git a/application/bookmark/BookmarkIO.php b/application/bookmark/BookmarkIO.php
index f40fa476..c78dbe41 100644
--- a/application/bookmark/BookmarkIO.php
+++ b/application/bookmark/BookmarkIO.php
@@ -112,12 +112,12 @@ class BookmarkIO
         if (is_file($this->datastore) && !is_writeable($this->datastore)) {
             // The datastore exists but is not writeable
             throw new NotWritableDataStoreException($this->datastore);
-        } else if (!is_file($this->datastore) && !is_writeable(dirname($this->datastore))) {
+        } elseif (!is_file($this->datastore) && !is_writeable(dirname($this->datastore))) {
             // The datastore does not exist and its parent directory is not writeable
             throw new NotWritableDataStoreException(dirname($this->datastore));
         }
 
-        $data = self::$phpPrefix.base64_encode(gzdeflate(serialize($links))).self::$phpSuffix;
+        $data = self::$phpPrefix . base64_encode(gzdeflate(serialize($links))) . self::$phpSuffix;
 
         $this->mutex->synchronized(function () use ($data) {
             file_put_contents(
diff --git a/application/bookmark/BookmarkInitializer.php b/application/bookmark/BookmarkInitializer.php
index 98dd3f1c..8ab5c441 100644
--- a/application/bookmark/BookmarkInitializer.php
+++ b/application/bookmark/BookmarkInitializer.php
@@ -13,6 +13,9 @@ namespace Shaarli\Bookmark;
  * To prevent data corruption, it does not overwrite existing bookmarks,
  * even though there should not be any.
  *
+ * We disable this because otherwise it creates indentation issues, and heredoc is not supported by PHP gettext.
+ * @phpcs:disable Generic.Files.LineLength.TooLong
+ *
  * @package Shaarli\Bookmark
  */
 class BookmarkInitializer
@@ -39,7 +42,7 @@ class BookmarkInitializer
         $bookmark->setTitle('Calm Jazz Music - YouTube ' . t('(private bookmark with thumbnail demo)'));
         $bookmark->setUrl('https://www.youtube.com/watch?v=DVEUcbPkb-c');
         $bookmark->setDescription(t(
-'Shaarli will automatically pick up the thumbnail for links to a variety of websites.
+            'Shaarli will automatically pick up the thumbnail for links to a variety of websites.
 
 Explore your new Shaarli instance by trying out controls and menus.
 Visit the project on [Github](https://github.com/shaarli/Shaarli) or [the documentation](https://shaarli.readthedocs.io/en/master/) to learn more about Shaarli.
@@ -54,7 +57,7 @@ Now you can edit or delete the default shaares.
         $bookmark = new Bookmark();
         $bookmark->setTitle(t('Note: Shaare descriptions'));
         $bookmark->setDescription(t(
-'Adding a shaare without entering a URL creates a text-only "note" post such as this one.
+            'Adding a shaare without entering a URL creates a text-only "note" post such as this one.
 This note is private, so you are the only one able to see it while logged in.
 
 You can use this to keep notes, post articles, code snippets, and much more.
@@ -91,7 +94,7 @@ Markdown also supports tables:
             'Shaarli - ' . t('The personal, minimalist, super-fast, database free, bookmarking service')
         );
         $bookmark->setDescription(t(
-'Welcome to Shaarli!
+            'Welcome to Shaarli!
 
 Shaarli allows you to bookmark your favorite pages, and share them with others or store them privately.
 You can add a description to your bookmarks, such as this one, and tag them.
diff --git a/application/bookmark/LinkUtils.php b/application/bookmark/LinkUtils.php
index cf97e3b0..d65e97ed 100644
--- a/application/bookmark/LinkUtils.php
+++ b/application/bookmark/LinkUtils.php
@@ -67,14 +67,15 @@ function html_extract_tag($tag, $html)
     $propertiesKey = ['property', 'name', 'itemprop'];
     $properties = implode('|', $propertiesKey);
     // We need a OR here to accept either 'property=og:noquote' or 'property="og:unrelated og:my-tag"'
-    $orCondition  = '["\']?(?:og:)?'. $tag .'["\']?|["\'][^\'"]*?(?:og:)?' . $tag . '[^\'"]*?[\'"]';
+    $orCondition  = '["\']?(?:og:)?' . $tag . '["\']?|["\'][^\'"]*?(?:og:)?' . $tag . '[^\'"]*?[\'"]';
     // Try to retrieve OpenGraph tag.
-    $ogRegex = '#<meta[^>]+(?:'. $properties .')=(?:'. $orCondition .')[^>]*content=(["\'])([^\1]*?)\1.*?>#';
+    $ogRegex = '#<meta[^>]+(?:' . $properties . ')=(?:' . $orCondition . ')[^>]*content=(["\'])([^\1]*?)\1.*?>#';
     // If the attributes are not in the order property => content (e.g. Github)
     // New regex to keep this readable... more or less.
-    $ogRegexReverse = '#<meta[^>]+content=(["\'])([^\1]*?)\1[^>]+(?:'. $properties .')=(?:'. $orCondition .').*?>#';
+    $ogRegexReverse = '#<meta[^>]+content=(["\'])([^\1]*?)\1[^>]+(?:' . $properties . ')=(?:' . $orCondition . ').*?>#';
 
-    if (preg_match($ogRegex, $html, $matches) > 0
+    if (
+        preg_match($ogRegex, $html, $matches) > 0
         || preg_match($ogRegexReverse, $html, $matches) > 0
     ) {
         return $matches[2];
@@ -116,7 +117,7 @@ function hashtag_autolink($description, $indexUrl = '')
      * \p{Mn} - any non marking space (accents, umlauts, etc)
      */
     $regex = '/(^|\s)#([\p{Pc}\p{N}\p{L}\p{Mn}]+)/mui';
-    $replacement = '$1<a href="'. $indexUrl .'./add-tag/$2" title="Hashtag $2">#$2</a>';
+    $replacement = '$1<a href="' . $indexUrl . './add-tag/$2" title="Hashtag $2">#$2</a>';
     return preg_replace($regex, $replacement, $description);
 }
 
diff --git a/application/bookmark/exception/BookmarkNotFoundException.php b/application/bookmark/exception/BookmarkNotFoundException.php
index 827a3d35..a91d1efa 100644
--- a/application/bookmark/exception/BookmarkNotFoundException.php
+++ b/application/bookmark/exception/BookmarkNotFoundException.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Bookmark\Exception;
 
 use Exception;
diff --git a/application/bookmark/exception/EmptyDataStoreException.php b/application/bookmark/exception/EmptyDataStoreException.php
index cd48c1e6..16a98470 100644
--- a/application/bookmark/exception/EmptyDataStoreException.php
+++ b/application/bookmark/exception/EmptyDataStoreException.php
@@ -1,7 +1,7 @@
 <?php
 
-
 namespace Shaarli\Bookmark\Exception;
 
-
-class EmptyDataStoreException extends \Exception {}
+class EmptyDataStoreException extends \Exception
+{
+}
diff --git a/application/bookmark/exception/InvalidBookmarkException.php b/application/bookmark/exception/InvalidBookmarkException.php
index 10c84a6d..fe184f8c 100644
--- a/application/bookmark/exception/InvalidBookmarkException.php
+++ b/application/bookmark/exception/InvalidBookmarkException.php
@@ -16,14 +16,14 @@ class InvalidBookmarkException extends \Exception
             } else {
                 $created = 'Not a DateTime object';
             }
-            $this->message = 'This bookmark is not valid'. PHP_EOL;
-            $this->message .= ' - ID: '. $bookmark->getId() . PHP_EOL;
-            $this->message .= ' - Title: '. $bookmark->getTitle() . PHP_EOL;
-            $this->message .= ' - Url: '. $bookmark->getUrl() . PHP_EOL;
-            $this->message .= ' - ShortUrl: '. $bookmark->getShortUrl() . PHP_EOL;
-            $this->message .= ' - Created: '. $created . PHP_EOL;
+            $this->message = 'This bookmark is not valid' . PHP_EOL;
+            $this->message .= ' - ID: ' . $bookmark->getId() . PHP_EOL;
+            $this->message .= ' - Title: ' . $bookmark->getTitle() . PHP_EOL;
+            $this->message .= ' - Url: ' . $bookmark->getUrl() . PHP_EOL;
+            $this->message .= ' - ShortUrl: ' . $bookmark->getShortUrl() . PHP_EOL;
+            $this->message .= ' - Created: ' . $created . PHP_EOL;
         } else {
-            $this->message = 'The provided data is not a bookmark'. PHP_EOL;
+            $this->message = 'The provided data is not a bookmark' . PHP_EOL;
             $this->message .= var_export($bookmark, true);
         }
     }
diff --git a/application/bookmark/exception/NotWritableDataStoreException.php b/application/bookmark/exception/NotWritableDataStoreException.php
index 95f34b50..df91f3bc 100644
--- a/application/bookmark/exception/NotWritableDataStoreException.php
+++ b/application/bookmark/exception/NotWritableDataStoreException.php
@@ -1,9 +1,7 @@
 <?php
 
-
 namespace Shaarli\Bookmark\Exception;
 
-
 class NotWritableDataStoreException extends \Exception
 {
     /**
@@ -13,7 +11,7 @@ class NotWritableDataStoreException extends \Exception
      */
     public function __construct($dataStore)
     {
-        $this->message = 'Couldn\'t load data from the data store file "'. $dataStore .'". '.
+        $this->message = 'Couldn\'t load data from the data store file "' . $dataStore . '". ' .
             'Your data might be corrupted, or your file isn\'t readable.';
     }
 }
diff --git a/application/config/ConfigIO.php b/application/config/ConfigIO.php
index 3efe5b6f..a623bc8b 100644
--- a/application/config/ConfigIO.php
+++ b/application/config/ConfigIO.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Config;
 
 /**
diff --git a/application/config/ConfigManager.php b/application/config/ConfigManager.php
index 3260d7c0..717a038f 100644
--- a/application/config/ConfigManager.php
+++ b/application/config/ConfigManager.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Config;
 
 use Shaarli\Config\Exception\MissingFieldConfigException;
@@ -20,7 +21,7 @@ class ConfigManager
      */
     protected static $NOT_FOUND = 'NOT_FOUND';
 
-    public static $DEFAULT_PLUGINS = array('qrcode');
+    public static $DEFAULT_PLUGINS = ['qrcode'];
 
     /**
      * @var string Config folder.
@@ -133,7 +134,7 @@ class ConfigManager
     public function set($setting, $value, $write = false, $isLoggedIn = false)
     {
         if (empty($setting) || ! is_string($setting)) {
-            throw new \Exception(t('Invalid setting key parameter. String expected, got: '). gettype($setting));
+            throw new \Exception(t('Invalid setting key parameter. String expected, got: ') . gettype($setting));
         }
 
         // During the ConfigIO transition, map legacy settings to the new ones.
@@ -160,7 +161,7 @@ class ConfigManager
     public function remove($setting, $write = false, $isLoggedIn = false)
     {
         if (empty($setting) || ! is_string($setting)) {
-            throw new \Exception(t('Invalid setting key parameter. String expected, got: '). gettype($setting));
+            throw new \Exception(t('Invalid setting key parameter. String expected, got: ') . gettype($setting));
         }
 
         // During the ConfigIO transition, map legacy settings to the new ones.
@@ -213,7 +214,7 @@ class ConfigManager
     public function write($isLoggedIn)
     {
         // These fields are required in configuration.
-        $mandatoryFields = array(
+        $mandatoryFields = [
             'credentials.login',
             'credentials.hash',
             'credentials.salt',
@@ -222,7 +223,7 @@ class ConfigManager
             'general.title',
             'general.header_link',
             'privacy.default_private_links',
-        );
+        ];
 
         // Only logged in user can alter config.
         if (is_file($this->getConfigFileExt()) && !$isLoggedIn) {
@@ -392,7 +393,7 @@ class ConfigManager
         $this->setEmpty('translation.mode', 'php');
         $this->setEmpty('translation.extensions', []);
 
-        $this->setEmpty('plugins', array());
+        $this->setEmpty('plugins', []);
 
         $this->setEmpty('formatter', 'markdown');
     }
diff --git a/application/config/ConfigPhp.php b/application/config/ConfigPhp.php
index cad34594..53d6a7a3 100644
--- a/application/config/ConfigPhp.php
+++ b/application/config/ConfigPhp.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Config;
 
 /**
@@ -12,7 +13,7 @@ class ConfigPhp implements ConfigIO
     /**
      * @var array List of config key without group.
      */
-    public static $ROOT_KEYS = array(
+    public static $ROOT_KEYS = [
         'login',
         'hash',
         'salt',
@@ -22,7 +23,7 @@ class ConfigPhp implements ConfigIO
         'redirector',
         'disablesessionprotection',
         'privateLinkByDefault',
-    );
+    ];
 
     /**
      * Map legacy config keys with the new ones.
@@ -31,7 +32,7 @@ class ConfigPhp implements ConfigIO
      *
      * @var array current key => legacy key.
      */
-    public static $LEGACY_KEYS_MAPPING = array(
+    public static $LEGACY_KEYS_MAPPING = [
         'credentials.login' => 'login',
         'credentials.hash' => 'hash',
         'credentials.salt' => 'salt',
@@ -68,7 +69,7 @@ class ConfigPhp implements ConfigIO
         'privacy.hide_public_links' => 'config.HIDE_PUBLIC_LINKS',
         'privacy.hide_timestamps' => 'config.HIDE_TIMESTAMPS',
         'security.open_shaarli' => 'config.OPEN_SHAARLI',
-    );
+    ];
 
     /**
      * @inheritdoc
@@ -76,12 +77,12 @@ class ConfigPhp implements ConfigIO
     public function read($filepath)
     {
         if (! file_exists($filepath) || ! is_readable($filepath)) {
-            return array();
+            return [];
         }
 
         include $filepath;
 
-        $out = array();
+        $out = [];
         foreach (self::$ROOT_KEYS as $key) {
             $out[$key] = isset($GLOBALS[$key]) ? $GLOBALS[$key] : '';
         }
@@ -95,7 +96,7 @@ class ConfigPhp implements ConfigIO
      */
     public function write($filepath, $conf)
     {
-        $configStr = '<?php '. PHP_EOL;
+        $configStr = '<?php ' . PHP_EOL;
         foreach (self::$ROOT_KEYS as $key) {
             if (isset($conf[$key])) {
                 $configStr .= '$GLOBALS[\'' . $key . '\'] = ' . var_export($conf[$key], true) . ';' . PHP_EOL;
@@ -106,8 +107,8 @@ class ConfigPhp implements ConfigIO
         foreach ($conf['config'] as $key => $value) {
             $configStr .= '$GLOBALS[\'config\'][\''
                 . $key
-                .'\'] = '
-                .var_export($conf['config'][$key], true).';'
+                . '\'] = '
+                . var_export($conf['config'][$key], true) . ';'
                 . PHP_EOL;
         }
 
@@ -115,18 +116,19 @@ class ConfigPhp implements ConfigIO
             foreach ($conf['plugins'] as $key => $value) {
                 $configStr .= '$GLOBALS[\'plugins\'][\''
                     . $key
-                    .'\'] = '
-                    .var_export($conf['plugins'][$key], true).';'
+                    . '\'] = '
+                    . var_export($conf['plugins'][$key], true) . ';'
                     . PHP_EOL;
             }
         }
 
-        if (!file_put_contents($filepath, $configStr)
+        if (
+            !file_put_contents($filepath, $configStr)
             || strcmp(file_get_contents($filepath), $configStr) != 0
         ) {
             throw new \Shaarli\Exceptions\IOException(
                 $filepath,
-                t('Shaarli could not create the config file. '.
+                t('Shaarli could not create the config file. ' .
                   'Please make sure Shaarli has the right to write in the folder is it installed in.')
             );
         }
diff --git a/application/config/ConfigPlugin.php b/application/config/ConfigPlugin.php
index ea8dfbda..6cadef12 100644
--- a/application/config/ConfigPlugin.php
+++ b/application/config/ConfigPlugin.php
@@ -39,8 +39,8 @@ function save_plugin_config($formData)
         throw new PluginConfigOrderException();
     }
 
-    $plugins = array();
-    $newEnabledPlugins = array();
+    $plugins = [];
+    $newEnabledPlugins = [];
     foreach ($formData as $key => $data) {
         if (startsWith($key, 'order')) {
             continue;
@@ -62,7 +62,7 @@ function save_plugin_config($formData)
         throw new PluginConfigOrderException();
     }
 
-    $finalPlugins = array();
+    $finalPlugins = [];
     // Make plugins order continuous.
     foreach ($plugins as $plugin) {
         $finalPlugins[] = $plugin;
@@ -81,7 +81,7 @@ function save_plugin_config($formData)
  */
 function validate_plugin_order($formData)
 {
-    $orders = array();
+    $orders = [];
     foreach ($formData as $key => $value) {
         // No duplicate order allowed.
         if (in_array($value, $orders, true)) {
diff --git a/application/config/exception/MissingFieldConfigException.php b/application/config/exception/MissingFieldConfigException.php
index 9e0a9359..a5f4356a 100644
--- a/application/config/exception/MissingFieldConfigException.php
+++ b/application/config/exception/MissingFieldConfigException.php
@@ -1,6 +1,5 @@
 <?php
 
-
 namespace Shaarli\Config\Exception;
 
 /**
diff --git a/application/config/exception/UnauthorizedConfigException.php b/application/config/exception/UnauthorizedConfigException.php
index 72311fae..b041c6e3 100644
--- a/application/config/exception/UnauthorizedConfigException.php
+++ b/application/config/exception/UnauthorizedConfigException.php
@@ -1,6 +1,5 @@
 <?php
 
-
 namespace Shaarli\Config\Exception;
 
 /**
diff --git a/application/container/ContainerBuilder.php b/application/container/ContainerBuilder.php
index d84418ad..f0234eca 100644
--- a/application/container/ContainerBuilder.php
+++ b/application/container/ContainerBuilder.php
@@ -158,7 +158,7 @@ class ContainerBuilder
 
         $container['updater'] = function (ShaarliContainer $container): Updater {
             return new Updater(
-                UpdaterUtils::read_updates_file($container->conf->get('resource.updates')),
+                UpdaterUtils::readUpdatesFile($container->conf->get('resource.updates')),
                 $container->bookmarkService,
                 $container->conf,
                 $container->loginManager->isLoggedIn()
diff --git a/application/exceptions/IOException.php b/application/exceptions/IOException.php
index 2aa25e5c..c1a9ffbe 100644
--- a/application/exceptions/IOException.php
+++ b/application/exceptions/IOException.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Exceptions;
 
 use Exception;
diff --git a/application/feed/FeedBuilder.php b/application/feed/FeedBuilder.php
index f70fce4f..ed62af26 100644
--- a/application/feed/FeedBuilder.php
+++ b/application/feed/FeedBuilder.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Feed;
 
 use DateTime;
@@ -107,14 +108,14 @@ class FeedBuilder
         $nblinksToDisplay = $this->getNbLinks(count($linksToDisplay), $userInput);
 
         // Can't use array_keys() because $link is a LinkDB instance and not a real array.
-        $keys = array();
+        $keys = [];
         foreach ($linksToDisplay as $key => $value) {
             $keys[] = $key;
         }
 
         $pageaddr = escape(index_url($this->serverInfo));
         $this->formatter->addContextData('index_url', $pageaddr);
-        $linkDisplayed = array();
+        $linkDisplayed = [];
         for ($i = 0; $i < $nblinksToDisplay && $i < count($keys); $i++) {
             $linkDisplayed[$keys[$i]] = $this->buildItem($feedType, $linksToDisplay[$keys[$i]], $pageaddr);
         }
@@ -176,9 +177,9 @@ class FeedBuilder
         $data = $this->formatter->format($link);
         $data['guid'] = rtrim($pageaddr, '/') . '/shaare/' . $data['shorturl'];
         if ($this->usePermalinks === true) {
-            $permalink = '<a href="'. $data['url'] .'" title="'. t('Direct link') .'">'. t('Direct link') .'</a>';
+            $permalink = '<a href="' . $data['url'] . '" title="' . t('Direct link') . '">' . t('Direct link') . '</a>';
         } else {
-            $permalink = '<a href="'. $data['guid'] .'" title="'. t('Permalink') .'">'. t('Permalink') .'</a>';
+            $permalink = '<a href="' . $data['guid'] . '" title="' . t('Permalink') . '">' . t('Permalink') . '</a>';
         }
         $data['description'] .= PHP_EOL . PHP_EOL . '<br>&#8212; ' . $permalink;
 
diff --git a/application/formatter/BookmarkDefaultFormatter.php b/application/formatter/BookmarkDefaultFormatter.php
index 51bea0f1..7e0afafc 100644
--- a/application/formatter/BookmarkDefaultFormatter.php
+++ b/application/formatter/BookmarkDefaultFormatter.php
@@ -12,8 +12,8 @@ namespace Shaarli\Formatter;
  */
 class BookmarkDefaultFormatter extends BookmarkFormatter
 {
-    const SEARCH_HIGHLIGHT_OPEN = '|@@HIGHLIGHT';
-    const SEARCH_HIGHLIGHT_CLOSE = 'HIGHLIGHT@@|';
+    protected const SEARCH_HIGHLIGHT_OPEN = '|@@HIGHLIGHT';
+    protected const SEARCH_HIGHLIGHT_CLOSE = 'HIGHLIGHT@@|';
 
     /**
      * @inheritdoc
diff --git a/application/formatter/BookmarkMarkdownFormatter.php b/application/formatter/BookmarkMarkdownFormatter.php
index f7714be9..ee4e8dca 100644
--- a/application/formatter/BookmarkMarkdownFormatter.php
+++ b/application/formatter/BookmarkMarkdownFormatter.php
@@ -16,7 +16,7 @@ class BookmarkMarkdownFormatter extends BookmarkDefaultFormatter
     /**
      * When this tag is present in a bookmark, its description should not be processed with Markdown
      */
-    const NO_MD_TAG = 'nomarkdown';
+    public const NO_MD_TAG = 'nomarkdown';
 
     /** @var \Parsedown instance */
     protected $parsedown;
@@ -71,7 +71,7 @@ class BookmarkMarkdownFormatter extends BookmarkDefaultFormatter
         $processedDescription = $this->replaceTokens($processedDescription);
 
         if (!empty($processedDescription)) {
-            $processedDescription = '<div class="markdown">'. $processedDescription . '</div>';
+            $processedDescription = '<div class="markdown">' . $processedDescription . '</div>';
         }
 
         return $processedDescription;
@@ -110,7 +110,7 @@ class BookmarkMarkdownFormatter extends BookmarkDefaultFormatter
             function ($match) use ($allowedProtocols, $indexUrl) {
                 $link = startsWith($match[1], '?') || startsWith($match[1], '/') ? $indexUrl : '';
                 $link .= whitelist_protocols($match[1], $allowedProtocols);
-                return ']('. $link.')';
+                return '](' . $link . ')';
             },
             $description
         );
@@ -137,7 +137,7 @@ class BookmarkMarkdownFormatter extends BookmarkDefaultFormatter
          * \p{Mn} - any non marking space (accents, umlauts, etc)
          */
         $regex = '/(^|\s)#([\p{Pc}\p{N}\p{L}\p{Mn}]+)/mui';
-        $replacement = '$1[#$2]('. $indexUrl .'./add-tag/$2)';
+        $replacement = '$1[#$2](' . $indexUrl . './add-tag/$2)';
 
         $descriptionLines = explode(PHP_EOL, $description);
         $descriptionOut = '';
@@ -178,17 +178,17 @@ class BookmarkMarkdownFormatter extends BookmarkDefaultFormatter
      */
     protected function sanitizeHtml($description)
     {
-        $escapeTags = array(
+        $escapeTags = [
             'script',
             'style',
             'link',
             'iframe',
             'frameset',
             'frame',
-        );
+        ];
         foreach ($escapeTags as $tag) {
             $description = preg_replace_callback(
-                '#<\s*'. $tag .'[^>]*>(.*</\s*'. $tag .'[^>]*>)?#is',
+                '#<\s*' . $tag . '[^>]*>(.*</\s*' . $tag . '[^>]*>)?#is',
                 function ($match) {
                     return escape($match[0]);
                 },
diff --git a/application/formatter/BookmarkRawFormatter.php b/application/formatter/BookmarkRawFormatter.php
index bc372273..4ff07cdf 100644
--- a/application/formatter/BookmarkRawFormatter.php
+++ b/application/formatter/BookmarkRawFormatter.php
@@ -10,4 +10,6 @@ namespace Shaarli\Formatter;
  *
  * @package Shaarli\Formatter
  */
-class BookmarkRawFormatter extends BookmarkFormatter {}
+class BookmarkRawFormatter extends BookmarkFormatter
+{
+}
diff --git a/application/formatter/FormatterFactory.php b/application/formatter/FormatterFactory.php
index a029579f..bb865aed 100644
--- a/application/formatter/FormatterFactory.php
+++ b/application/formatter/FormatterFactory.php
@@ -41,7 +41,7 @@ class FormatterFactory
     public function getFormatter(string $type = null): BookmarkFormatter
     {
         $type = $type ? $type : $this->conf->get('formatter', 'default');
-        $className = '\\Shaarli\\Formatter\\Bookmark'. ucfirst($type) .'Formatter';
+        $className = '\\Shaarli\\Formatter\\Bookmark' . ucfirst($type) . 'Formatter';
         if (!class_exists($className)) {
             $className = '\\Shaarli\\Formatter\\BookmarkDefaultFormatter';
         }
diff --git a/application/front/ShaarliMiddleware.php b/application/front/ShaarliMiddleware.php
index d1aa1399..164217f4 100644
--- a/application/front/ShaarliMiddleware.php
+++ b/application/front/ShaarliMiddleware.php
@@ -42,7 +42,8 @@ class ShaarliMiddleware
         $this->initBasePath($request);
 
         try {
-            if (!is_file($this->container->conf->getConfigFileExt())
+            if (
+                !is_file($this->container->conf->getConfigFileExt())
                 && !in_array($next->getName(), ['displayInstall', 'saveInstall'], true)
             ) {
                 return $response->withRedirect($this->container->basePath . '/install');
@@ -86,7 +87,8 @@ class ShaarliMiddleware
      */
     protected function checkOpenShaarli(Request $request, Response $response, callable $next): bool
     {
-        if (// if the user isn't logged in
+        if (
+// if the user isn't logged in
             !$this->container->loginManager->isLoggedIn()
             // and Shaarli doesn't have public content...
             && $this->container->conf->get('privacy.hide_public_links')
diff --git a/application/front/controller/admin/ConfigureController.php b/application/front/controller/admin/ConfigureController.php
index 0ed7ad81..dc421661 100644
--- a/application/front/controller/admin/ConfigureController.php
+++ b/application/front/controller/admin/ConfigureController.php
@@ -51,7 +51,10 @@ class ConfigureController extends ShaarliAdminController
         $this->assignView('languages', Languages::getAvailableLanguages());
         $this->assignView('gd_enabled', extension_loaded('gd'));
         $this->assignView('thumbnails_mode', $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE));
-        $this->assignView('pagetitle', t('Configure') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView(
+            'pagetitle',
+            t('Configure') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
+        );
 
         return $response->write($this->render(TemplatePage::CONFIGURE));
     }
@@ -95,12 +98,15 @@ class ConfigureController extends ShaarliAdminController
         }
 
         $thumbnailsMode = extension_loaded('gd') ? $request->getParam('enableThumbnails') : Thumbnailer::MODE_NONE;
-        if ($thumbnailsMode !== Thumbnailer::MODE_NONE
+        if (
+            $thumbnailsMode !== Thumbnailer::MODE_NONE
             && $thumbnailsMode !== $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE)
         ) {
             $this->saveWarningMessage(
                 t('You have enabled or changed thumbnails mode.') .
-                '<a href="'. $this->container->basePath .'/admin/thumbnails">' . t('Please synchronize them.') .'</a>'
+                '<a href="' . $this->container->basePath . '/admin/thumbnails">' .
+                    t('Please synchronize them.') .
+                '</a>'
             );
         }
         $this->container->conf->set('thumbnails.mode', $thumbnailsMode);
diff --git a/application/front/controller/admin/ExportController.php b/application/front/controller/admin/ExportController.php
index 2be957fa..f01d7e9b 100644
--- a/application/front/controller/admin/ExportController.php
+++ b/application/front/controller/admin/ExportController.php
@@ -23,7 +23,7 @@ class ExportController extends ShaarliAdminController
      */
     public function index(Request $request, Response $response): Response
     {
-        $this->assignView('pagetitle', t('Export') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('pagetitle', t('Export') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'));
 
         return $response->write($this->render(TemplatePage::EXPORT));
     }
@@ -68,7 +68,7 @@ class ExportController extends ShaarliAdminController
         $response = $response->withHeader('Content-Type', 'text/html; charset=utf-8');
         $response = $response->withHeader(
             'Content-disposition',
-            'attachment; filename=bookmarks_'.$selection.'_'.$now->format(Bookmark::LINK_DATE_FORMAT).'.html'
+            'attachment; filename=bookmarks_' . $selection . '_' . $now->format(Bookmark::LINK_DATE_FORMAT) . '.html'
         );
 
         $this->assignView('date', $now->format(DateTime::RFC822));
diff --git a/application/front/controller/admin/ImportController.php b/application/front/controller/admin/ImportController.php
index 758d5ef9..c2ad6a09 100644
--- a/application/front/controller/admin/ImportController.php
+++ b/application/front/controller/admin/ImportController.php
@@ -38,7 +38,7 @@ class ImportController extends ShaarliAdminController
                 true
             )
         );
-        $this->assignView('pagetitle', t('Import') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('pagetitle', t('Import') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'));
 
         return $response->write($this->render(TemplatePage::IMPORT));
     }
@@ -64,7 +64,7 @@ class ImportController extends ShaarliAdminController
             $msg = sprintf(
                 t(
                     'The file you are trying to upload is probably bigger than what this webserver can accept'
-                    .' (%s). Please upload in smaller chunks.'
+                    . ' (%s). Please upload in smaller chunks.'
                 ),
                 get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
             );
diff --git a/application/front/controller/admin/ManageTagController.php b/application/front/controller/admin/ManageTagController.php
index 22fb461c..8675a0c5 100644
--- a/application/front/controller/admin/ManageTagController.php
+++ b/application/front/controller/admin/ManageTagController.php
@@ -32,7 +32,7 @@ class ManageTagController extends ShaarliAdminController
         $this->assignView('tags_separator', $separator);
         $this->assignView(
             'pagetitle',
-            t('Manage tags') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Manage tags') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
 
         return $response->write($this->render(TemplatePage::CHANGE_TAG));
@@ -87,7 +87,7 @@ class ManageTagController extends ShaarliAdminController
 
         $this->saveSuccessMessage($alert);
 
-        $redirect = true === $isDelete ? '/admin/tags' : '/?searchtags='. urlencode($toTag);
+        $redirect = true === $isDelete ? '/admin/tags' : '/?searchtags=' . urlencode($toTag);
 
         return $this->redirect($response, $redirect);
     }
diff --git a/application/front/controller/admin/PasswordController.php b/application/front/controller/admin/PasswordController.php
index 5ec0d24b..4aaf1f82 100644
--- a/application/front/controller/admin/PasswordController.php
+++ b/application/front/controller/admin/PasswordController.php
@@ -25,7 +25,7 @@ class PasswordController extends ShaarliAdminController
 
         $this->assignView(
             'pagetitle',
-            t('Change password') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Change password') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
     }
 
@@ -78,7 +78,7 @@ class PasswordController extends ShaarliAdminController
 
         // Save new password
         // Salt renders rainbow-tables attacks useless.
-        $this->container->conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
+        $this->container->conf->set('credentials.salt', sha1(uniqid('', true) . '_' . mt_rand()));
         $this->container->conf->set(
             'credentials.hash',
             sha1(
diff --git a/application/front/controller/admin/PluginsController.php b/application/front/controller/admin/PluginsController.php
index 8e059681..ae47c1af 100644
--- a/application/front/controller/admin/PluginsController.php
+++ b/application/front/controller/admin/PluginsController.php
@@ -42,7 +42,7 @@ class PluginsController extends ShaarliAdminController
         $this->assignView('disabledPlugins', $disabledPlugins);
         $this->assignView(
             'pagetitle',
-            t('Plugin Administration') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Plugin Administration') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
 
         return $response->write($this->render(TemplatePage::PLUGINS_ADMIN));
@@ -64,7 +64,7 @@ class PluginsController extends ShaarliAdminController
                 unset($parameters['parameters_form']);
                 unset($parameters['token']);
                 foreach ($parameters as $param => $value) {
-                    $this->container->conf->set('plugins.'. $param, escape($value));
+                    $this->container->conf->set('plugins.' . $param, escape($value));
                 }
             } else {
                 $this->container->conf->set('general.enabled_plugins', save_plugin_config($parameters));
diff --git a/application/front/controller/admin/ServerController.php b/application/front/controller/admin/ServerController.php
index 780151dd..fabeaf2f 100644
--- a/application/front/controller/admin/ServerController.php
+++ b/application/front/controller/admin/ServerController.php
@@ -72,7 +72,9 @@ class ServerController extends ShaarliAdminController
 
             $this->saveWarningMessage(
                 t('Thumbnails cache has been cleared.') . ' ' .
-                '<a href="'. $this->container->basePath .'/admin/thumbnails">' . t('Please synchronize them.') .'</a>'
+                '<a href="' . $this->container->basePath . '/admin/thumbnails">' .
+                    t('Please synchronize them.') .
+                '</a>'
             );
         } else {
             $folders = [
diff --git a/application/front/controller/admin/SessionFilterController.php b/application/front/controller/admin/SessionFilterController.php
index d9a7a2e0..0917b6d2 100644
--- a/application/front/controller/admin/SessionFilterController.php
+++ b/application/front/controller/admin/SessionFilterController.php
@@ -45,6 +45,4 @@ class SessionFilterController extends ShaarliAdminController
 
         return $this->redirectFromReferer($request, $response, ['visibility']);
     }
-
-
 }
diff --git a/application/front/controller/admin/ShaareAddController.php b/application/front/controller/admin/ShaareAddController.php
index 8dc386b2..ab8e7f40 100644
--- a/application/front/controller/admin/ShaareAddController.php
+++ b/application/front/controller/admin/ShaareAddController.php
@@ -23,7 +23,7 @@ class ShaareAddController extends ShaarliAdminController
 
         $this->assignView(
             'pagetitle',
-            t('Shaare a new link') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Shaare a new link') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
         $this->assignView('tags', $tags);
         $this->assignView('default_private_links', $this->container->conf->get('privacy.default_private_links', false));
diff --git a/application/front/controller/admin/ShaareManageController.php b/application/front/controller/admin/ShaareManageController.php
index 0b143172..35837baa 100644
--- a/application/front/controller/admin/ShaareManageController.php
+++ b/application/front/controller/admin/ShaareManageController.php
@@ -54,7 +54,7 @@ class ShaareManageController extends ShaarliAdminController
             $data = $formatter->format($bookmark);
             $this->executePageHooks('delete_link', $data);
             $this->container->bookmarkService->remove($bookmark, false);
-            ++ $count;
+            ++$count;
         }
 
         if ($count > 0) {
diff --git a/application/front/controller/admin/ShaarePublishController.php b/application/front/controller/admin/ShaarePublishController.php
index 625a5680..4cbfcdc5 100644
--- a/application/front/controller/admin/ShaarePublishController.php
+++ b/application/front/controller/admin/ShaarePublishController.php
@@ -118,7 +118,8 @@ class ShaarePublishController extends ShaarliAdminController
             $this->container->conf->get('general.tags_separator', ' ')
         );
 
-        if ($this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
+        if (
+            $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
             && true !== $this->container->conf->get('general.enable_async_metadata', true)
             && $bookmark->shouldUpdateThumbnail()
         ) {
@@ -148,7 +149,8 @@ class ShaarePublishController extends ShaarliAdminController
         return $this->redirectFromReferer(
             $request,
             $response,
-            ['/admin/add-shaare', '/admin/shaare'], ['addlink', 'post', 'edit_link'],
+            ['/admin/add-shaare', '/admin/shaare'],
+            ['addlink', 'post', 'edit_link'],
             $bookmark->getShortUrl()
         );
     }
@@ -168,10 +170,10 @@ class ShaarePublishController extends ShaarliAdminController
             $this->assignView($key, $value);
         }
 
-        $editLabel = false === $isNew ? t('Edit') .' ' : '';
+        $editLabel = false === $isNew ? t('Edit') . ' ' : '';
         $this->assignView(
             'pagetitle',
-            $editLabel . t('Shaare') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            $editLabel . t('Shaare') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
 
         return $response->write($this->render(TemplatePage::EDIT_LINK));
@@ -194,7 +196,8 @@ class ShaarePublishController extends ShaarliAdminController
 
             // If this is an HTTP(S) link, we try go get the page to extract
             // the title (otherwise we will to straight to the edit form.)
-            if (true !== $this->container->conf->get('general.enable_async_metadata', true)
+            if (
+                true !== $this->container->conf->get('general.enable_async_metadata', true)
                 && empty($title)
                 && strpos(get_url_scheme($url) ?: '', 'http') !== false
             ) {
diff --git a/application/front/controller/admin/ThumbnailsController.php b/application/front/controller/admin/ThumbnailsController.php
index 4dc09d38..94d97d4b 100644
--- a/application/front/controller/admin/ThumbnailsController.php
+++ b/application/front/controller/admin/ThumbnailsController.php
@@ -34,7 +34,7 @@ class ThumbnailsController extends ShaarliAdminController
         $this->assignView('ids', $ids);
         $this->assignView(
             'pagetitle',
-            t('Thumbnails update') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Thumbnails update') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
 
         return $response->write($this->render(TemplatePage::THUMBNAILS));
diff --git a/application/front/controller/admin/ToolsController.php b/application/front/controller/admin/ToolsController.php
index a87f20d2..560e5e3e 100644
--- a/application/front/controller/admin/ToolsController.php
+++ b/application/front/controller/admin/ToolsController.php
@@ -28,7 +28,7 @@ class ToolsController extends ShaarliAdminController
             $this->assignView($key, $value);
         }
 
-        $this->assignView('pagetitle', t('Tools') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('pagetitle', t('Tools') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'));
 
         return $response->write($this->render(TemplatePage::TOOLS));
     }
diff --git a/application/front/controller/visitor/BookmarkListController.php b/application/front/controller/visitor/BookmarkListController.php
index cc3837ce..fe8231be 100644
--- a/application/front/controller/visitor/BookmarkListController.php
+++ b/application/front/controller/visitor/BookmarkListController.php
@@ -35,7 +35,8 @@ class BookmarkListController extends ShaarliVisitorController
         $formatter->addContextData('base_path', $this->container->basePath);
 
         $searchTags = normalize_spaces($request->getParam('searchtags') ?? '');
-        $searchTerm = escape(normalize_spaces($request->getParam('searchterm') ?? ''));;
+        $searchTerm = escape(normalize_spaces($request->getParam('searchterm') ?? ''));
+        ;
 
         // Filter bookmarks according search parameters.
         $visibility = $this->container->sessionManager->getSessionParameter('visibility');
@@ -160,7 +161,7 @@ class BookmarkListController extends ShaarliVisitorController
         $data = array_merge(
             $this->initializeTemplateVars(),
             [
-                'pagetitle' => $bookmark->getTitle() .' - '. $this->container->conf->get('general.title', 'Shaarli'),
+                'pagetitle' => $bookmark->getTitle() . ' - ' . $this->container->conf->get('general.title', 'Shaarli'),
                 'links' => [$formatter->format($bookmark)],
             ]
         );
@@ -185,7 +186,8 @@ class BookmarkListController extends ShaarliVisitorController
             $bookmark->setThumbnail(null);
 
             // Requires an update, not async retrieval, thumbnails enabled
-            if ($bookmark->shouldUpdateThumbnail()
+            if (
+                $bookmark->shouldUpdateThumbnail()
                 && true !== $this->container->conf->get('general.enable_async_metadata', true)
                 && $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
             ) {
diff --git a/application/front/controller/visitor/DailyController.php b/application/front/controller/visitor/DailyController.php
index 728bc2d8..846cfe22 100644
--- a/application/front/controller/visitor/DailyController.php
+++ b/application/front/controller/visitor/DailyController.php
@@ -132,7 +132,7 @@ class DailyController extends ShaarliVisitorController
                 'date' => $endDateTime,
                 'date_rss' => $endDateTime->format(DateTime::RSS),
                 'date_human' => DailyPageHelper::getDescriptionByType($type, $dayDateTime),
-                'absolute_url' => $indexUrl . 'daily?'. $type .'=' . $day,
+                'absolute_url' => $indexUrl . 'daily?' . $type . '=' . $day,
                 'links' => [],
             ];
 
diff --git a/application/front/controller/visitor/FeedController.php b/application/front/controller/visitor/FeedController.php
index 8d8b546a..edc7ef43 100644
--- a/application/front/controller/visitor/FeedController.php
+++ b/application/front/controller/visitor/FeedController.php
@@ -27,7 +27,7 @@ class FeedController extends ShaarliVisitorController
 
     protected function processRequest(string $feedType, Request $request, Response $response): Response
     {
-        $response = $response->withHeader('Content-Type', 'application/'. $feedType .'+xml; charset=utf-8');
+        $response = $response->withHeader('Content-Type', 'application/' . $feedType . '+xml; charset=utf-8');
 
         $pageUrl = page_url($this->container->environment);
         $cache = $this->container->pageCacheManager->getCachePage($pageUrl);
diff --git a/application/front/controller/visitor/InstallController.php b/application/front/controller/visitor/InstallController.php
index 22329294..bf965929 100644
--- a/application/front/controller/visitor/InstallController.php
+++ b/application/front/controller/visitor/InstallController.php
@@ -39,7 +39,8 @@ class InstallController extends ShaarliVisitorController
         // Before installation, we'll make sure that permissions are set properly, and sessions are working.
         $this->checkPermissions();
 
-        if (static::SESSION_TEST_VALUE
+        if (
+            static::SESSION_TEST_VALUE
             !== $this->container->sessionManager->getSessionParameter(static::SESSION_TEST_KEY)
         ) {
             $this->container->sessionManager->setSessionParameter(static::SESSION_TEST_KEY, static::SESSION_TEST_VALUE);
@@ -75,17 +76,18 @@ class InstallController extends ShaarliVisitorController
         // This part makes sure sessions works correctly.
         // (Because on some hosts, session.save_path may not be set correctly,
         // or we may not have write access to it.)
-        if (static::SESSION_TEST_VALUE
+        if (
+            static::SESSION_TEST_VALUE
             !== $this->container->sessionManager->getSessionParameter(static::SESSION_TEST_KEY)
         ) {
             // Step 2: Check if data in session is correct.
             $msg = t(
-                '<pre>Sessions do not seem to work correctly on your server.<br>'.
-                'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
-                'and that you have write access to it.<br>'.
-                'It currently points to %s.<br>'.
-                'On some browsers, accessing your server via a hostname like \'localhost\' '.
-                'or any custom hostname without a dot causes cookie storage to fail. '.
+                '<pre>Sessions do not seem to work correctly on your server.<br>' .
+                'Make sure the variable "session.save_path" is set correctly in your PHP config, ' .
+                'and that you have write access to it.<br>' .
+                'It currently points to %s.<br>' .
+                'On some browsers, accessing your server via a hostname like \'localhost\' ' .
+                'or any custom hostname without a dot causes cookie storage to fail. ' .
                 'We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'
             );
             $msg = sprintf($msg, $this->container->sessionManager->getSavePath());
@@ -104,7 +106,8 @@ class InstallController extends ShaarliVisitorController
     public function save(Request $request, Response $response): Response
     {
         $timezone = 'UTC';
-        if (!empty($request->getParam('continent'))
+        if (
+            !empty($request->getParam('continent'))
             && !empty($request->getParam('city'))
             && isTimeZoneValid($request->getParam('continent'), $request->getParam('city'))
         ) {
@@ -114,7 +117,7 @@ class InstallController extends ShaarliVisitorController
 
         $login = $request->getParam('setlogin');
         $this->container->conf->set('credentials.login', $login);
-        $salt = sha1(uniqid('', true) .'_'. mt_rand());
+        $salt = sha1(uniqid('', true) . '_' . mt_rand());
         $this->container->conf->set('credentials.salt', $salt);
         $this->container->conf->set('credentials.hash', sha1($request->getParam('setpassword') . $login . $salt));
 
@@ -123,7 +126,7 @@ class InstallController extends ShaarliVisitorController
         } else {
             $this->container->conf->set(
                 'general.title',
-                'Shared bookmarks on '.escape(index_url($this->container->environment))
+                'Shared bookmarks on ' . escape(index_url($this->container->environment))
             );
         }
 
diff --git a/application/front/controller/visitor/LoginController.php b/application/front/controller/visitor/LoginController.php
index f5038fe3..4b881535 100644
--- a/application/front/controller/visitor/LoginController.php
+++ b/application/front/controller/visitor/LoginController.php
@@ -43,7 +43,7 @@ class LoginController extends ShaarliVisitorController
         $this
             ->assignView('returnurl', escape($returnUrl))
             ->assignView('remember_user_default', $this->container->conf->get('privacy.remember_user_default', true))
-            ->assignView('pagetitle', t('Login') .' - '. $this->container->conf->get('general.title', 'Shaarli'))
+            ->assignView('pagetitle', t('Login') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'))
         ;
 
         return $response->write($this->render(TemplatePage::LOGIN));
@@ -64,7 +64,8 @@ class LoginController extends ShaarliVisitorController
             return $this->redirect($response, '/');
         }
 
-        if (!$this->container->loginManager->checkCredentials(
+        if (
+            !$this->container->loginManager->checkCredentials(
                 client_ip_id($this->container->environment),
                 $request->getParam('login'),
                 $request->getParam('password')
@@ -101,7 +102,8 @@ class LoginController extends ShaarliVisitorController
      */
     protected function checkLoginState(): bool
     {
-        if ($this->container->loginManager->isLoggedIn()
+        if (
+            $this->container->loginManager->isLoggedIn()
             || $this->container->conf->get('security.open_shaarli', false)
         ) {
             throw new CantLoginException();
diff --git a/application/front/controller/visitor/PictureWallController.php b/application/front/controller/visitor/PictureWallController.php
index 3c57f8dd..23553ee6 100644
--- a/application/front/controller/visitor/PictureWallController.php
+++ b/application/front/controller/visitor/PictureWallController.php
@@ -26,7 +26,7 @@ class PictureWallController extends ShaarliVisitorController
 
         $this->assignView(
             'pagetitle',
-            t('Picture wall') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Picture wall') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
 
         // Optionally filter the results:
diff --git a/application/front/controller/visitor/ShaarliVisitorController.php b/application/front/controller/visitor/ShaarliVisitorController.php
index 54f9fe03..ae946c59 100644
--- a/application/front/controller/visitor/ShaarliVisitorController.php
+++ b/application/front/controller/visitor/ShaarliVisitorController.php
@@ -144,7 +144,8 @@ abstract class ShaarliVisitorController
         if (null !== $referer) {
             $currentUrl = parse_url($referer);
             // If the referer is not related to Shaarli instance, redirect to default
-            if (isset($currentUrl['host'])
+            if (
+                isset($currentUrl['host'])
                 && strpos(index_url($this->container->environment), $currentUrl['host']) === false
             ) {
                 return $response->withRedirect($defaultPath);
@@ -173,7 +174,7 @@ abstract class ShaarliVisitorController
             }
         }
 
-        $queryString = count($params) > 0 ? '?'. http_build_query($params) : '';
+        $queryString = count($params) > 0 ? '?' . http_build_query($params) : '';
         $anchor = $anchor ? '#' . $anchor : '';
 
         return $response->withRedirect($path . $queryString . $anchor);
diff --git a/application/front/controller/visitor/TagCloudController.php b/application/front/controller/visitor/TagCloudController.php
index 560cad08..46d62779 100644
--- a/application/front/controller/visitor/TagCloudController.php
+++ b/application/front/controller/visitor/TagCloudController.php
@@ -84,10 +84,10 @@ class TagCloudController extends ShaarliVisitorController
         $this->executePageHooks('render_tag' . $type, $data, 'tag.' . $type);
         $this->assignAllView($data);
 
-        $searchTags = !empty($searchTags) ? trim(str_replace($tagsSeparator, ' ', $searchTags)) .' - ' : '';
+        $searchTags = !empty($searchTags) ? trim(str_replace($tagsSeparator, ' ', $searchTags)) . ' - ' : '';
         $this->assignView(
             'pagetitle',
-            $searchTags . t('Tag '. $type) .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            $searchTags . t('Tag ' . $type) . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
         );
 
         return $response->write($this->render('tag.' . $type));
diff --git a/application/front/controller/visitor/TagController.php b/application/front/controller/visitor/TagController.php
index 7a3377a7..3aa58542 100644
--- a/application/front/controller/visitor/TagController.php
+++ b/application/front/controller/visitor/TagController.php
@@ -27,7 +27,7 @@ class TagController extends ShaarliVisitorController
         // In case browser does not send HTTP_REFERER, we search a single tag
         if (null === $referer) {
             if (null !== $newTag) {
-                return $this->redirect($response, '/?searchtags='. urlencode($newTag));
+                return $this->redirect($response, '/?searchtags=' . urlencode($newTag));
             }
 
             return $this->redirect($response, '/');
@@ -37,7 +37,7 @@ class TagController extends ShaarliVisitorController
         parse_str($currentUrl['query'] ?? '', $params);
 
         if (null === $newTag) {
-            return $response->withRedirect(($currentUrl['path'] ?? './') .'?'. http_build_query($params));
+            return $response->withRedirect(($currentUrl['path'] ?? './') . '?' . http_build_query($params));
         }
 
         // Prevent redirection loop
@@ -68,7 +68,7 @@ class TagController extends ShaarliVisitorController
         // We also remove page (keeping the same page has no sense, since the results are different)
         unset($params['page']);
 
-        return $response->withRedirect(($currentUrl['path'] ?? './') .'?'. http_build_query($params));
+        return $response->withRedirect(($currentUrl['path'] ?? './') . '?' . http_build_query($params));
     }
 
     /**
@@ -90,7 +90,7 @@ class TagController extends ShaarliVisitorController
         parse_str($currentUrl['query'] ?? '', $params);
 
         if (null === $tagToRemove) {
-            return $response->withRedirect(($currentUrl['path'] ?? './') .'?'. http_build_query($params));
+            return $response->withRedirect(($currentUrl['path'] ?? './') . '?' . http_build_query($params));
         }
 
         // Prevent redirection loop
diff --git a/application/helper/ApplicationUtils.php b/application/helper/ApplicationUtils.php
index 4b34e114..212dd8e2 100644
--- a/application/helper/ApplicationUtils.php
+++ b/application/helper/ApplicationUtils.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Helper;
 
 use Exception;
@@ -16,7 +17,7 @@ class ApplicationUtils
 
     public static $GITHUB_URL = 'https://github.com/shaarli/Shaarli';
     public static $GIT_RAW_URL = 'https://raw.githubusercontent.com/shaarli/Shaarli';
-    public static $GIT_BRANCHES = array('latest', 'stable');
+    public static $GIT_BRANCHES = ['latest', 'stable'];
     private static $VERSION_START_TAG = '<?php /* ';
     private static $VERSION_END_TAG = ' */ ?>';
 
@@ -64,8 +65,8 @@ class ApplicationUtils
         }
 
         return str_replace(
-            array(self::$VERSION_START_TAG, self::$VERSION_END_TAG, PHP_EOL),
-            array('', '', ''),
+            [self::$VERSION_START_TAG, self::$VERSION_END_TAG, PHP_EOL],
+            ['', '', ''],
             $data
         );
     }
@@ -184,13 +185,15 @@ class ApplicationUtils
         $rainTplDir = rtrim($conf->get('resource.raintpl_tpl'), '/');
 
         // Check script and template directories are readable
-        foreach ([
-                     'application',
-                     'inc',
-                     'plugins',
-                     $rainTplDir,
-                     $rainTplDir . '/' . $conf->get('resource.theme'),
-                 ] as $path) {
+        foreach (
+            [
+            'application',
+            'inc',
+            'plugins',
+            $rainTplDir,
+            $rainTplDir . '/' . $conf->get('resource.theme'),
+            ] as $path
+        ) {
             if (!is_readable(realpath($path))) {
                 $errors[] = '"' . $path . '" ' . t('directory is not readable');
             }
@@ -203,10 +206,10 @@ class ApplicationUtils
             ];
         } else {
             $folders = [
-                $conf->get('resource.thumbnails_cache'),
-                $conf->get('resource.data_dir'),
-                $conf->get('resource.page_cache'),
-                $conf->get('resource.raintpl_tmp'),
+            $conf->get('resource.thumbnails_cache'),
+            $conf->get('resource.data_dir'),
+            $conf->get('resource.page_cache'),
+            $conf->get('resource.raintpl_tmp'),
             ];
         }
 
@@ -224,13 +227,15 @@ class ApplicationUtils
         }
 
         // Check configuration files are readable and writable
-        foreach (array(
-                     $conf->getConfigFileExt(),
-                     $conf->get('resource.datastore'),
-                     $conf->get('resource.ban_file'),
-                     $conf->get('resource.log'),
-                     $conf->get('resource.update_check'),
-                 ) as $path) {
+        foreach (
+            [
+                 $conf->getConfigFileExt(),
+                 $conf->get('resource.datastore'),
+                 $conf->get('resource.ban_file'),
+                 $conf->get('resource.log'),
+                 $conf->get('resource.update_check'),
+             ] as $path
+        ) {
             if (!is_file(realpath($path))) {
                 # the file may not exist yet
                 continue;
diff --git a/application/helper/FileUtils.php b/application/helper/FileUtils.php
index 2eac0793..e8a2168c 100644
--- a/application/helper/FileUtils.php
+++ b/application/helper/FileUtils.php
@@ -105,7 +105,7 @@ class FileUtils
         }
 
         foreach (new \DirectoryIterator($path) as $file) {
-            if($file->isDot()) {
+            if ($file->isDot()) {
                 continue;
             }
 
@@ -116,7 +116,7 @@ class FileUtils
 
             if ($file->isFile()) {
                 unlink($file->getPathname());
-            } elseif($file->isDir()) {
+            } elseif ($file->isDir()) {
                 $skipped = static::clearFolder($file->getRealPath(), true, $exclude) || $skipped;
             }
         }
diff --git a/application/http/HttpUtils.php b/application/http/HttpUtils.php
index ed1002b0..4bde1d5b 100644
--- a/application/http/HttpUtils.php
+++ b/application/http/HttpUtils.php
@@ -48,7 +48,7 @@ function get_http_response(
     $cleanUrl = $urlObj->idnToAscii();
 
     if (!filter_var($cleanUrl, FILTER_VALIDATE_URL) || !$urlObj->isHttp()) {
-        return array(array(0 => 'Invalid HTTP UrlUtils'), false);
+        return [[0 => 'Invalid HTTP UrlUtils'], false];
     }
 
     $userAgent =
@@ -71,7 +71,7 @@ function get_http_response(
 
     $ch = curl_init($cleanUrl);
     if ($ch === false) {
-        return array(array(0 => 'curl_init() error'), false);
+        return [[0 => 'curl_init() error'], false];
     }
 
     // General cURL settings
@@ -82,7 +82,7 @@ function get_http_response(
     curl_setopt(
         $ch,
         CURLOPT_HTTPHEADER,
-        array('Accept-Language: ' . $acceptLanguage)
+        ['Accept-Language: ' . $acceptLanguage]
     );
     curl_setopt($ch, CURLOPT_MAXREDIRS, $maxRedirs);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
@@ -90,7 +90,7 @@ function get_http_response(
     curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
 
     // Max download size management
-    curl_setopt($ch, CURLOPT_BUFFERSIZE, 1024*16);
+    curl_setopt($ch, CURLOPT_BUFFERSIZE, 1024 * 16);
     curl_setopt($ch, CURLOPT_NOPROGRESS, false);
     if (is_callable($curlHeaderFunction)) {
         curl_setopt($ch, CURLOPT_HEADERFUNCTION, $curlHeaderFunction);
@@ -122,9 +122,9 @@ function get_http_response(
              * Removing this would require updating
              * GetHttpUrlTest::testGetInvalidRemoteUrl()
              */
-            return array(false, false);
+            return [false, false];
         }
-        return array(array(0 => 'curl_exec() error: ' . $errorStr), false);
+        return [[0 => 'curl_exec() error: ' . $errorStr], false];
     }
 
     // Formatting output like the fallback method
@@ -135,7 +135,7 @@ function get_http_response(
     $rawHeadersLastRedir = end($rawHeadersArrayRedirs);
 
     $content = substr($response, $headSize);
-    $headers = array();
+    $headers = [];
     foreach (preg_split('~[\r\n]+~', $rawHeadersLastRedir) as $line) {
         if (empty($line) || ctype_space($line)) {
             continue;
@@ -146,7 +146,7 @@ function get_http_response(
             $value = $splitLine[1];
             if (array_key_exists($key, $headers)) {
                 if (!is_array($headers[$key])) {
-                    $headers[$key] = array(0 => $headers[$key]);
+                    $headers[$key] = [0 => $headers[$key]];
                 }
                 $headers[$key][] = $value;
             } else {
@@ -157,7 +157,7 @@ function get_http_response(
         }
     }
 
-    return array($headers, $content);
+    return [$headers, $content];
 }
 
 /**
@@ -188,15 +188,15 @@ function get_http_response_fallback(
     $acceptLanguage,
     $maxRedr
 ) {
-    $options = array(
-        'http' => array(
+    $options = [
+        'http' => [
             'method' => 'GET',
             'timeout' => $timeout,
             'user_agent' => $userAgent,
             'header' => "Accept: */*\r\n"
                 . 'Accept-Language: ' . $acceptLanguage
-        )
-    );
+        ]
+    ];
 
     stream_context_set_default($options);
     list($headers, $finalUrl) = get_redirected_headers($cleanUrl, $maxRedr);
@@ -207,7 +207,7 @@ function get_http_response_fallback(
     }
 
     if (! $headers) {
-        return array($headers, false);
+        return [$headers, false];
     }
 
     try {
@@ -215,10 +215,10 @@ function get_http_response_fallback(
         $context = stream_context_create($options);
         $content = file_get_contents($finalUrl, false, $context, -1, $maxBytes);
     } catch (Exception $exc) {
-        return array(array(0 => 'HTTP Error'), $exc->getMessage());
+        return [[0 => 'HTTP Error'], $exc->getMessage()];
     }
 
-    return array($headers, $content);
+    return [$headers, $content];
 }
 
 /**
@@ -237,10 +237,12 @@ function get_redirected_headers($url, $redirectionLimit = 3)
     }
 
     // Headers found, redirection found, and limit not reached.
-    if ($redirectionLimit-- > 0
+    if (
+        $redirectionLimit-- > 0
         && !empty($headers)
         && (strpos($headers[0], '301') !== false || strpos($headers[0], '302') !== false)
-        && !empty($headers['Location'])) {
+        && !empty($headers['Location'])
+    ) {
         $redirection = is_array($headers['Location']) ? end($headers['Location']) : $headers['Location'];
         if ($redirection != $url) {
             $redirection = getAbsoluteUrl($url, $redirection);
@@ -248,7 +250,7 @@ function get_redirected_headers($url, $redirectionLimit = 3)
         }
     }
 
-    return array($headers, $url);
+    return [$headers, $url];
 }
 
 /**
@@ -270,7 +272,7 @@ function getAbsoluteUrl($originalUrl, $newUrl)
     }
 
     $parts = parse_url($originalUrl);
-    $final = $parts['scheme'] .'://'. $parts['host'];
+    $final = $parts['scheme'] . '://' . $parts['host'];
     $final .= (!empty($parts['port'])) ? $parts['port'] : '';
     $final .= '/';
     if ($newUrl[0] != '/') {
@@ -323,7 +325,8 @@ function server_url($server)
                 $scheme = 'https';
             }
 
-            if (($scheme == 'http' && $port != '80')
+            if (
+                ($scheme == 'http' && $port != '80')
                 || ($scheme == 'https' && $port != '443')
             ) {
                 $port = ':' . $port;
@@ -344,22 +347,26 @@ function server_url($server)
             $host = $server['SERVER_NAME'];
         }
 
-        return $scheme.'://'.$host.$port;
+        return $scheme . '://' . $host . $port;
     }
 
     // SSL detection
-    if ((! empty($server['HTTPS']) && strtolower($server['HTTPS']) == 'on')
-        || (isset($server['SERVER_PORT']) && $server['SERVER_PORT'] == '443')) {
+    if (
+        (! empty($server['HTTPS']) && strtolower($server['HTTPS']) == 'on')
+        || (isset($server['SERVER_PORT']) && $server['SERVER_PORT'] == '443')
+    ) {
         $scheme = 'https';
     }
 
     // Do not append standard port values
-    if (($scheme == 'http' && $server['SERVER_PORT'] != '80')
-        || ($scheme == 'https' && $server['SERVER_PORT'] != '443')) {
-        $port = ':'.$server['SERVER_PORT'];
+    if (
+        ($scheme == 'http' && $server['SERVER_PORT'] != '80')
+        || ($scheme == 'https' && $server['SERVER_PORT'] != '443')
+    ) {
+        $port = ':' . $server['SERVER_PORT'];
     }
 
-    return $scheme.'://'.$server['SERVER_NAME'].$port;
+    return $scheme . '://' . $server['SERVER_NAME'] . $port;
 }
 
 /**
@@ -567,7 +574,10 @@ function get_curl_download_callback(
      *
      * @return int|bool length of $data or false if we need to stop the download
      */
-    return function ($ch, $data) use (
+    return function (
+        $ch,
+        $data
+    ) use (
         $retrieveDescription,
         $tagsSeparator,
         &$charset,
@@ -601,7 +611,7 @@ function get_curl_download_callback(
                 $foundChunk = $currentChunk;
                 // Keywords use the format tag1, tag2 multiple words, tag
                 // So we split the result with `,`, then if a tag contains the separator we replace it by `-`.
-                $keywords = tags_array2str(array_map(function(string $keyword) use ($tagsSeparator): string {
+                $keywords = tags_array2str(array_map(function (string $keyword) use ($tagsSeparator): string {
                     return tags_array2str(tags_str2array($keyword, $tagsSeparator), '-');
                 }, tags_str2array($keywords, ',')), $tagsSeparator);
             }
@@ -611,7 +621,8 @@ function get_curl_download_callback(
         // If we already found either the title, description or keywords,
         // it's highly unlikely that we'll found the other metas further than
         // in the same chunk of data or the next one. So we also stop the download after that.
-        if ((!empty($responseCode) && !empty($contentType) && !empty($charset)) && $foundChunk !== null
+        if (
+            (!empty($responseCode) && !empty($contentType) && !empty($charset)) && $foundChunk !== null
             && (! $retrieveDescription
                 || $foundChunk < $currentChunk
                 || (!empty($title) && !empty($description) && !empty($keywords))
diff --git a/application/http/Url.php b/application/http/Url.php
index 90444a2f..fe87088f 100644
--- a/application/http/Url.php
+++ b/application/http/Url.php
@@ -17,7 +17,7 @@ namespace Shaarli\Http;
  */
 class Url
 {
-    private static $annoyingQueryParams = array(
+    private static $annoyingQueryParams = [
         // Facebook
         'action_object_map=',
         'action_ref_map=',
@@ -37,15 +37,15 @@ class Url
 
         // Other
         'campaign_'
-    );
+    ];
 
-    private static $annoyingFragments = array(
+    private static $annoyingFragments = [
         // ATInternet
         'xtor=RSS-',
 
         // Misc.
         'tk.rss_all'
-    );
+    ];
 
     /*
      * URL parts represented as an array
@@ -120,7 +120,7 @@ class Url
         foreach (self::$annoyingQueryParams as $annoying) {
             foreach ($queryParams as $param) {
                 if (startsWith($param, $annoying)) {
-                    $queryParams = array_diff($queryParams, array($param));
+                    $queryParams = array_diff($queryParams, [$param]);
                     continue;
                 }
             }
diff --git a/application/http/UrlUtils.php b/application/http/UrlUtils.php
index e8d1a283..de5b7db1 100644
--- a/application/http/UrlUtils.php
+++ b/application/http/UrlUtils.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * Converts an array-represented URL to a string
  *
@@ -12,15 +13,15 @@
  */
 function unparse_url($parsedUrl)
 {
-    $scheme   = isset($parsedUrl['scheme']) ? $parsedUrl['scheme'].'://' : '';
+    $scheme   = isset($parsedUrl['scheme']) ? $parsedUrl['scheme'] . '://' : '';
     $host     = isset($parsedUrl['host']) ? $parsedUrl['host'] : '';
-    $port     = isset($parsedUrl['port']) ? ':'.$parsedUrl['port'] : '';
+    $port     = isset($parsedUrl['port']) ? ':' . $parsedUrl['port'] : '';
     $user     = isset($parsedUrl['user']) ? $parsedUrl['user'] : '';
-    $pass     = isset($parsedUrl['pass']) ? ':'.$parsedUrl['pass']  : '';
+    $pass     = isset($parsedUrl['pass']) ? ':' . $parsedUrl['pass']  : '';
     $pass     = ($user || $pass) ? "$pass@" : '';
     $path     = isset($parsedUrl['path']) ? $parsedUrl['path'] : '';
-    $query    = isset($parsedUrl['query']) ? '?'.$parsedUrl['query'] : '';
-    $fragment = isset($parsedUrl['fragment']) ? '#'.$parsedUrl['fragment'] : '';
+    $query    = isset($parsedUrl['query']) ? '?' . $parsedUrl['query'] : '';
+    $fragment = isset($parsedUrl['fragment']) ? '#' . $parsedUrl['fragment'] : '';
 
     return "$scheme$user$pass$host$port$path$query$fragment";
 }
diff --git a/application/legacy/LegacyController.php b/application/legacy/LegacyController.php
index 826604e7..1fed418b 100644
--- a/application/legacy/LegacyController.php
+++ b/application/legacy/LegacyController.php
@@ -51,7 +51,7 @@ class LegacyController extends ShaarliVisitorController
 
         if (!$this->container->loginManager->isLoggedIn()) {
             $parameters = $buildParameters($request->getQueryParams(), true);
-            return $this->redirect($response, '/login?returnurl='. $this->getBasePath() . $route . $parameters);
+            return $this->redirect($response, '/login?returnurl=' . $this->getBasePath() . $route . $parameters);
         }
 
         $parameters = $buildParameters($request->getQueryParams(), false);
diff --git a/application/legacy/LegacyLinkDB.php b/application/legacy/LegacyLinkDB.php
index 5c02a21b..d3beafe0 100644
--- a/application/legacy/LegacyLinkDB.php
+++ b/application/legacy/LegacyLinkDB.php
@@ -62,7 +62,7 @@ class LegacyLinkDB implements Iterator, Countable, ArrayAccess
     private $datastore;
 
     // Link date storage format
-    const LINK_DATE_FORMAT = 'Ymd_His';
+    public const LINK_DATE_FORMAT = 'Ymd_His';
 
     // List of bookmarks (associative array)
     //  - key:   link date (e.g. "20110823_124546"),
@@ -240,8 +240,8 @@ class LegacyLinkDB implements Iterator, Countable, ArrayAccess
         }
 
         // Create a dummy database for example
-        $this->links = array();
-        $link = array(
+        $this->links = [];
+        $link = [
             'id' => 1,
             'title' => t('The personal, minimalist, super-fast, database free, bookmarking service'),
             'url' => 'https://shaarli.readthedocs.io',
@@ -257,11 +257,11 @@ You use the community supported version of the original Shaarli project, by Seba
             'created' => new DateTime(),
             'tags' => 'opensource software',
             'sticky' => false,
-        );
+        ];
         $link['shorturl'] = link_small_hash($link['created'], $link['id']);
         $this->links[1] = $link;
 
-        $link = array(
+        $link = [
             'id' => 0,
             'title' => t('My secret stuff... - Pastebin.com'),
             'url' => 'http://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=',
@@ -270,7 +270,7 @@ You use the community supported version of the original Shaarli project, by Seba
             'created' => new DateTime('1 minute ago'),
             'tags' => 'secretstuff',
             'sticky' => false,
-        );
+        ];
         $link['shorturl'] = link_small_hash($link['created'], $link['id']);
         $this->links[0] = $link;
 
@@ -285,7 +285,7 @@ You use the community supported version of the original Shaarli project, by Seba
     {
         // Public bookmarks are hidden and user not logged in => nothing to show
         if ($this->hidePublicLinks && !$this->loggedIn) {
-            $this->links = array();
+            $this->links = [];
             return;
         }
 
@@ -293,7 +293,7 @@ You use the community supported version of the original Shaarli project, by Seba
         $this->ids = [];
         $this->links = FileUtils::readFlatDB($this->datastore, []);
 
-        $toremove = array();
+        $toremove = [];
         foreach ($this->links as $key => &$link) {
             if (!$this->loggedIn && $link['private'] != 0) {
                 // Transition for not upgraded databases.
@@ -414,7 +414,7 @@ You use the community supported version of the original Shaarli project, by Seba
      * @return array filtered bookmarks, all bookmarks if no suitable filter was provided.
      */
     public function filterSearch(
-        $filterRequest = array(),
+        $filterRequest = [],
         $casesensitive = false,
         $visibility = 'all',
         $untaggedonly = false
@@ -512,7 +512,7 @@ You use the community supported version of the original Shaarli project, by Seba
      */
     public function days()
     {
-        $linkDays = array();
+        $linkDays = [];
         foreach ($this->links as $link) {
             $linkDays[$link['created']->format('Ymd')] = 0;
         }
diff --git a/application/legacy/LegacyLinkFilter.php b/application/legacy/LegacyLinkFilter.php
index 7cf93d60..e6d186c4 100644
--- a/application/legacy/LegacyLinkFilter.php
+++ b/application/legacy/LegacyLinkFilter.php
@@ -120,7 +120,7 @@ class LegacyLinkFilter
             return $this->links;
         }
 
-        $out = array();
+        $out = [];
         foreach ($this->links as $key => $value) {
             if ($value['private'] && $visibility === 'private') {
                 $out[$key] = $value;
@@ -143,7 +143,7 @@ class LegacyLinkFilter
      */
     private function filterSmallHash($smallHash)
     {
-        $filtered = array();
+        $filtered = [];
         foreach ($this->links as $key => $l) {
             if ($smallHash == $l['shorturl']) {
                 // Yes, this is ugly and slow
@@ -186,7 +186,7 @@ class LegacyLinkFilter
             return $this->noFilter($visibility);
         }
 
-        $filtered = array();
+        $filtered = [];
         $search = mb_convert_case(html_entity_decode($searchterms), MB_CASE_LOWER, 'UTF-8');
         $exactRegex = '/"([^"]+)"/';
         // Retrieve exact search terms.
@@ -198,8 +198,8 @@ class LegacyLinkFilter
         $explodedSearchAnd = array_values(array_filter($explodedSearchAnd));
 
         // Filter excluding terms and update andSearch.
-        $excludeSearch = array();
-        $andSearch = array();
+        $excludeSearch = [];
+        $andSearch = [];
         foreach ($explodedSearchAnd as $needle) {
             if ($needle[0] == '-' && strlen($needle) > 1) {
                 $excludeSearch[] = substr($needle, 1);
@@ -208,7 +208,7 @@ class LegacyLinkFilter
             }
         }
 
-        $keys = array('title', 'description', 'url', 'tags');
+        $keys = ['title', 'description', 'url', 'tags'];
 
         // Iterate over every stored link.
         foreach ($this->links as $id => $link) {
@@ -336,7 +336,7 @@ class LegacyLinkFilter
         }
 
         // create resulting array
-        $filtered = array();
+        $filtered = [];
 
         // iterate over each link
         foreach ($this->links as $key => $link) {
@@ -352,7 +352,7 @@ class LegacyLinkFilter
             $search = $link['tags']; // build search string, start with tags of current link
             if (strlen(trim($link['description'])) && strpos($link['description'], '#') !== false) {
                 // description given and at least one possible tag found
-                $descTags = array();
+                $descTags = [];
                 // find all tags in the form of #tag in the description
                 preg_match_all(
                     '/(?<![' . self::$HASHTAG_CHARS . '])#([' . self::$HASHTAG_CHARS . ']+?)\b/sm',
@@ -419,7 +419,7 @@ class LegacyLinkFilter
             throw new Exception('Invalid date format');
         }
 
-        $filtered = array();
+        $filtered = [];
         foreach ($this->links as $key => $l) {
             if ($l['created']->format('Ymd') == $day) {
                 $filtered[$key] = $l;
diff --git a/application/legacy/LegacyUpdater.php b/application/legacy/LegacyUpdater.php
index ed949b1e..9bda54b8 100644
--- a/application/legacy/LegacyUpdater.php
+++ b/application/legacy/LegacyUpdater.php
@@ -93,7 +93,7 @@ class LegacyUpdater
      */
     public function update()
     {
-        $updatesRan = array();
+        $updatesRan = [];
 
         // If the user isn't logged in, exit without updating.
         if ($this->isLoggedIn !== true) {
@@ -106,7 +106,8 @@ class LegacyUpdater
 
         foreach ($this->methods as $method) {
             // Not an update method or already done, pass.
-            if (!startsWith($method->getName(), 'updateMethod')
+            if (
+                !startsWith($method->getName(), 'updateMethod')
                 || in_array($method->getName(), $this->doneUpdates)
             ) {
                 continue;
@@ -189,7 +190,7 @@ class LegacyUpdater
         }
 
         // Set sub config keys (config and plugins)
-        $subConfig = array('config', 'plugins');
+        $subConfig = ['config', 'plugins'];
         foreach ($subConfig as $sub) {
             foreach ($oldConfig[$sub] as $key => $value) {
                 if (isset($legacyMap[$sub . '.' . $key])) {
@@ -259,7 +260,7 @@ class LegacyUpdater
         $save = $this->conf->get('resource.data_dir') . '/datastore.' . date('YmdHis') . '.php';
         copy($this->conf->get('resource.datastore'), $save);
 
-        $links = array();
+        $links = [];
         foreach ($this->linkDB as $offset => $value) {
             $links[] = $value;
             unset($this->linkDB[$offset]);
@@ -498,7 +499,8 @@ class LegacyUpdater
      */
     public function updateMethodDownloadSizeAndTimeoutConf()
     {
-        if ($this->conf->exists('general.download_max_size')
+        if (
+            $this->conf->exists('general.download_max_size')
             && $this->conf->exists('general.download_timeout')
         ) {
             return true;
diff --git a/application/netscape/NetscapeBookmarkUtils.php b/application/netscape/NetscapeBookmarkUtils.php
index 6ca728b7..2d97b4c8 100644
--- a/application/netscape/NetscapeBookmarkUtils.php
+++ b/application/netscape/NetscapeBookmarkUtils.php
@@ -59,11 +59,11 @@ class NetscapeBookmarkUtils
         $indexUrl
     ) {
         // see tpl/export.html for possible values
-        if (!in_array($selection, array('all', 'public', 'private'))) {
+        if (!in_array($selection, ['all', 'public', 'private'])) {
             throw new Exception(t('Invalid export selection:') . ' "' . $selection . '"');
         }
 
-        $bookmarkLinks = array();
+        $bookmarkLinks = [];
         foreach ($this->bookmarkService->search([], $selection) as $bookmark) {
             $link = $formatter->format($bookmark);
             $link['taglist'] = implode(',', $bookmark->getTags());
diff --git a/application/plugin/PluginManager.php b/application/plugin/PluginManager.php
index da66dea3..3ea55728 100644
--- a/application/plugin/PluginManager.php
+++ b/application/plugin/PluginManager.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Plugin;
 
 use Shaarli\Config\ConfigManager;
@@ -23,7 +24,7 @@ class PluginManager
      *
      * @var array $loadedPlugins
      */
-    private $loadedPlugins = array();
+    private $loadedPlugins = [];
 
     /**
      * @var ConfigManager Configuration Manager instance.
@@ -57,7 +58,7 @@ class PluginManager
     public function __construct(&$conf)
     {
         $this->conf = $conf;
-        $this->errors = array();
+        $this->errors = [];
     }
 
     /**
@@ -98,7 +99,7 @@ class PluginManager
      *
      * @return void
      */
-    public function executeHooks($hook, &$data, $params = array())
+    public function executeHooks($hook, &$data, $params = [])
     {
         $metadataParameters = [
             'target' => '_PAGE_',
@@ -196,7 +197,7 @@ class PluginManager
      */
     public function getPluginsMeta()
     {
-        $metaData = array();
+        $metaData = [];
         $dirs = glob(self::$PLUGINS_PATH . '/*', GLOB_ONLYDIR | GLOB_MARK);
 
         // Browse all plugin directories.
@@ -217,9 +218,9 @@ class PluginManager
             if (isset($metaData[$plugin]['parameters'])) {
                 $params = explode(';', $metaData[$plugin]['parameters']);
             } else {
-                $params = array();
+                $params = [];
             }
-            $metaData[$plugin]['parameters'] = array();
+            $metaData[$plugin]['parameters'] = [];
             foreach ($params as $param) {
                 if (empty($param)) {
                     continue;
diff --git a/application/plugin/exception/PluginFileNotFoundException.php b/application/plugin/exception/PluginFileNotFoundException.php
index e5386f02..21ac6604 100644
--- a/application/plugin/exception/PluginFileNotFoundException.php
+++ b/application/plugin/exception/PluginFileNotFoundException.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Plugin\Exception;
 
 use Exception;
diff --git a/application/render/ThemeUtils.php b/application/render/ThemeUtils.php
index 86096c64..18471f0a 100644
--- a/application/render/ThemeUtils.php
+++ b/application/render/ThemeUtils.php
@@ -23,10 +23,10 @@ class ThemeUtils
     public static function getThemes($tplDir)
     {
         $tplDir = rtrim($tplDir, '/');
-        $allTheme = glob($tplDir.'/*', GLOB_ONLYDIR);
+        $allTheme = glob($tplDir . '/*', GLOB_ONLYDIR);
         $themes = [];
         foreach ($allTheme as $value) {
-            $themes[] = str_replace($tplDir.'/', '', $value);
+            $themes[] = str_replace($tplDir . '/', '', $value);
         }
 
         return $themes;
diff --git a/application/security/BanManager.php b/application/security/BanManager.php
index 288cbde0..7077af5b 100644
--- a/application/security/BanManager.php
+++ b/application/security/BanManager.php
@@ -1,6 +1,5 @@
 <?php
 
-
 namespace Shaarli\Security;
 
 use Psr\Log\LoggerInterface;
@@ -47,7 +46,8 @@ class BanManager
      * @param string          $banFile        Path to the file containing IP bans and failures
      * @param LoggerInterface $logger         PSR-3 logger to save login attempts in log directory
      */
-    public function __construct($trustedProxies, $nbAttempts, $banDuration, $banFile, LoggerInterface $logger) {
+    public function __construct($trustedProxies, $nbAttempts, $banDuration, $banFile, LoggerInterface $logger)
+    {
         $this->trustedProxies = $trustedProxies;
         $this->nbAttempts = $nbAttempts;
         $this->banDuration = $banDuration;
@@ -80,7 +80,7 @@ class BanManager
 
         if ($this->failures[$ip] >= $this->nbAttempts) {
             $this->bans[$ip] = time() + $this->banDuration;
-            $this->logger->info(format_log('IP address banned from login: '. $ip, $ip));
+            $this->logger->info(format_log('IP address banned from login: ' . $ip, $ip));
         }
         $this->writeBanFile();
     }
@@ -136,7 +136,7 @@ class BanManager
             unset($this->failures[$ip]);
         }
         unset($this->bans[$ip]);
-        $this->logger->info(format_log('Ban lifted for: '. $ip, $ip));
+        $this->logger->info(format_log('Ban lifted for: ' . $ip, $ip));
 
         $this->writeBanFile();
         return false;
diff --git a/application/security/LoginManager.php b/application/security/LoginManager.php
index 426e785e..b795b80e 100644
--- a/application/security/LoginManager.php
+++ b/application/security/LoginManager.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Security;
 
 use Exception;
@@ -106,7 +107,8 @@ class LoginManager
             // The user client has a valid stay-signed-in cookie
             // Session information is updated with the current client information
             $this->sessionManager->storeLoginInfo($clientIpId);
-        } elseif ($this->sessionManager->hasSessionExpired()
+        } elseif (
+            $this->sessionManager->hasSessionExpired()
             || $this->sessionManager->hasClientIpChanged($clientIpId)
         ) {
             $this->sessionManager->logout();
@@ -145,7 +147,8 @@ class LoginManager
         // Check credentials
         try {
             $useLdapLogin = !empty($this->configManager->get('ldap.host'));
-            if ($login === $this->configManager->get('credentials.login')
+            if (
+                $login === $this->configManager->get('credentials.login')
                 && (
                     (false === $useLdapLogin && $this->checkCredentialsFromLocalConfig($login, $password))
                     || (true === $useLdapLogin && $this->checkCredentialsFromLdap($login, $password))
@@ -156,7 +159,7 @@ class LoginManager
 
                 return true;
             }
-        } catch(Exception $exception) {
+        } catch (Exception $exception) {
             $this->logger->info(format_log('Exception while checking credentials: ' . $exception, $clientIpId));
         }
 
@@ -174,7 +177,8 @@ class LoginManager
      *
      * @return bool true if the provided credentials are valid, false otherwise
      */
-    public function checkCredentialsFromLocalConfig($login, $password) {
+    public function checkCredentialsFromLocalConfig($login, $password)
+    {
         $hash = sha1($password . $login . $this->configManager->get('credentials.salt'));
 
         return $login == $this->configManager->get('credentials.login')
@@ -193,14 +197,14 @@ class LoginManager
      */
     public function checkCredentialsFromLdap($login, $password, $connect = null, $bind = null)
     {
-        $connect = $connect ?? function($host) {
+        $connect = $connect ?? function ($host) {
             $resource = ldap_connect($host);
 
             ldap_set_option($resource, LDAP_OPT_PROTOCOL_VERSION, 3);
 
             return $resource;
         };
-        $bind = $bind ?? function($handle, $dn, $password) {
+        $bind = $bind ?? function ($handle, $dn, $password) {
             return ldap_bind($handle, $dn, $password);
         };
 
diff --git a/application/security/SessionManager.php b/application/security/SessionManager.php
index 96bf193c..f957b91a 100644
--- a/application/security/SessionManager.php
+++ b/application/security/SessionManager.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace Shaarli\Security;
 
 use Shaarli\Config\ConfigManager;
@@ -79,7 +80,7 @@ class SessionManager
      */
     public function generateToken()
     {
-        $token = sha1(uniqid('', true) .'_'. mt_rand() . $this->conf->get('credentials.salt'));
+        $token = sha1(uniqid('', true) . '_' . mt_rand() . $this->conf->get('credentials.salt'));
         $this->session['tokens'][$token] = 1;
         return $token;
     }
diff --git a/application/updater/Updater.php b/application/updater/Updater.php
index 88a7bc7b..4f557d0f 100644
--- a/application/updater/Updater.php
+++ b/application/updater/Updater.php
@@ -88,7 +88,8 @@ class Updater
 
         foreach ($this->methods as $method) {
             // Not an update method or already done, pass.
-            if (! startsWith($method->getName(), 'updateMethod')
+            if (
+                ! startsWith($method->getName(), 'updateMethod')
                 || in_array($method->getName(), $this->doneUpdates)
             ) {
                 continue;
@@ -121,12 +122,12 @@ class Updater
 
     public function readUpdates(string $updatesFilepath): array
     {
-        return UpdaterUtils::read_updates_file($updatesFilepath);
+        return UpdaterUtils::readUpdatesFile($updatesFilepath);
     }
 
     public function writeUpdates(string $updatesFilepath, array $updates): void
     {
-        UpdaterUtils::write_updates_file($updatesFilepath, $updates);
+        UpdaterUtils::writeUpdatesFile($updatesFilepath, $updates);
     }
 
     /**
@@ -152,7 +153,8 @@ class Updater
         $updated = false;
 
         foreach ($this->bookmarkService->search() as $bookmark) {
-            if ($bookmark->isNote()
+            if (
+                $bookmark->isNote()
                 && startsWith($bookmark->getUrl(), '?')
                 && 1 === preg_match('/^\?([a-zA-Z0-9-_@]{6})($|&|#)/', $bookmark->getUrl(), $match)
             ) {
diff --git a/application/updater/UpdaterUtils.php b/application/updater/UpdaterUtils.php
index 828a49fc..206f826e 100644
--- a/application/updater/UpdaterUtils.php
+++ b/application/updater/UpdaterUtils.php
@@ -11,7 +11,7 @@ class UpdaterUtils
      *
      * @return array Already done update methods.
      */
-    public static function read_updates_file($updatesFilepath)
+    public static function readUpdatesFile($updatesFilepath)
     {
         if (! empty($updatesFilepath) && is_file($updatesFilepath)) {
             $content = file_get_contents($updatesFilepath);
@@ -19,7 +19,7 @@ class UpdaterUtils
                 return explode(';', $content);
             }
         }
-        return array();
+        return [];
     }
 
     /**
@@ -30,7 +30,7 @@ class UpdaterUtils
      *
      * @throws \Exception Couldn't write version number.
      */
-    public static function write_updates_file($updatesFilepath, $updates)
+    public static function writeUpdatesFile($updatesFilepath, $updates)
     {
         if (empty($updatesFilepath)) {
             throw new \Exception('Updates file path is not set, can\'t write updates.');
@@ -38,7 +38,7 @@ class UpdaterUtils
 
         $res = file_put_contents($updatesFilepath, implode(';', $updates));
         if ($res === false) {
-            throw new \Exception('Unable to write updates in '. $updatesFilepath . '.');
+            throw new \Exception('Unable to write updates in ' . $updatesFilepath . '.');
         }
     }
 }