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1 <?php
2
3 /*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12 /*
13 * Users of PHP 5.2 should be able to run the requirements checks.
14 * This is why the file and all classes must be compatible with PHP 5.2+
15 * (e.g. not using namespaces and closures).
16 *
17 * ************** CAUTION **************
18 *
19 * DO NOT EDIT THIS FILE as it will be overridden by Composer as part of
20 * the installation/update process. The original file resides in the
21 * SensioDistributionBundle.
22 *
23 * ************** CAUTION **************
24 */
25
26 /**
27 * Represents a single PHP requirement, e.g. an installed extension.
28 * It can be a mandatory requirement or an optional recommendation.
29 * There is a special subclass, named PhpIniRequirement, to check a php.ini configuration.
30 *
31 * @author Tobias Schultze <http://tobion.de>
32 */
33 class Requirement
34 {
35 private $fulfilled;
36 private $testMessage;
37 private $helpText;
38 private $helpHtml;
39 private $optional;
40
41 /**
42 * Constructor that initializes the requirement.
43 *
44 * @param bool $fulfilled Whether the requirement is fulfilled
45 * @param string $testMessage The message for testing the requirement
46 * @param string $helpHtml The help text formatted in HTML for resolving the problem
47 * @param string|null $helpText The help text (when null, it will be inferred from $helpHtml, i.e. stripped from HTML tags)
48 * @param bool $optional Whether this is only an optional recommendation not a mandatory requirement
49 */
50 public function __construct($fulfilled, $testMessage, $helpHtml, $helpText = null, $optional = false)
51 {
52 $this->fulfilled = (bool) $fulfilled;
53 $this->testMessage = (string) $testMessage;
54 $this->helpHtml = (string) $helpHtml;
55 $this->helpText = null === $helpText ? strip_tags($this->helpHtml) : (string) $helpText;
56 $this->optional = (bool) $optional;
57 }
58
59 /**
60 * Returns whether the requirement is fulfilled.
61 *
62 * @return bool true if fulfilled, otherwise false
63 */
64 public function isFulfilled()
65 {
66 return $this->fulfilled;
67 }
68
69 /**
70 * Returns the message for testing the requirement.
71 *
72 * @return string The test message
73 */
74 public function getTestMessage()
75 {
76 return $this->testMessage;
77 }
78
79 /**
80 * Returns the help text for resolving the problem.
81 *
82 * @return string The help text
83 */
84 public function getHelpText()
85 {
86 return $this->helpText;
87 }
88
89 /**
90 * Returns the help text formatted in HTML.
91 *
92 * @return string The HTML help
93 */
94 public function getHelpHtml()
95 {
96 return $this->helpHtml;
97 }
98
99 /**
100 * Returns whether this is only an optional recommendation and not a mandatory requirement.
101 *
102 * @return bool true if optional, false if mandatory
103 */
104 public function isOptional()
105 {
106 return $this->optional;
107 }
108 }
109
110 /**
111 * Represents a PHP requirement in form of a php.ini configuration.
112 *
113 * @author Tobias Schultze <http://tobion.de>
114 */
115 class PhpIniRequirement extends Requirement
116 {
117 /**
118 * Constructor that initializes the requirement.
119 *
120 * @param string $cfgName The configuration name used for ini_get()
121 * @param bool|callback $evaluation Either a boolean indicating whether the configuration should evaluate to true or false,
122 * or a callback function receiving the configuration value as parameter to determine the fulfillment of the requirement
123 * @param bool $approveCfgAbsence If true the Requirement will be fulfilled even if the configuration option does not exist, i.e. ini_get() returns false.
124 * This is helpful for abandoned configs in later PHP versions or configs of an optional extension, like Suhosin.
125 * Example: You require a config to be true but PHP later removes this config and defaults it to true internally.
126 * @param string|null $testMessage The message for testing the requirement (when null and $evaluation is a boolean a default message is derived)
127 * @param string|null $helpHtml The help text formatted in HTML for resolving the problem (when null and $evaluation is a boolean a default help is derived)
128 * @param string|null $helpText The help text (when null, it will be inferred from $helpHtml, i.e. stripped from HTML tags)
129 * @param bool $optional Whether this is only an optional recommendation not a mandatory requirement
130 */
131 public function __construct($cfgName, $evaluation, $approveCfgAbsence = false, $testMessage = null, $helpHtml = null, $helpText = null, $optional = false)
132 {
133 $cfgValue = ini_get($cfgName);
134
135 if (is_callable($evaluation)) {
136 if (null === $testMessage || null === $helpHtml) {
137 throw new InvalidArgumentException('You must provide the parameters testMessage and helpHtml for a callback evaluation.');
138 }
139
140 $fulfilled = call_user_func($evaluation, $cfgValue);
141 } else {
142 if (null === $testMessage) {
143 $testMessage = sprintf('%s %s be %s in php.ini',
144 $cfgName,
145 $optional ? 'should' : 'must',
146 $evaluation ? 'enabled' : 'disabled'
147 );
148 }
149
150 if (null === $helpHtml) {
151 $helpHtml = sprintf('Set <strong>%s</strong> to <strong>%s</strong> in php.ini<a href="#phpini">*</a>.',
152 $cfgName,
153 $evaluation ? 'on' : 'off'
154 );
155 }
156
157 $fulfilled = $evaluation == $cfgValue;
158 }
159
160 parent::__construct($fulfilled || ($approveCfgAbsence && false === $cfgValue), $testMessage, $helpHtml, $helpText, $optional);
161 }
162 }
163
164 /**
165 * A RequirementCollection represents a set of Requirement instances.
166 *
167 * @author Tobias Schultze <http://tobion.de>
168 */
169 class RequirementCollection implements IteratorAggregate
170 {
171 /**
172 * @var Requirement[]
173 */
174 private $requirements = array();
175
176 /**
177 * Gets the current RequirementCollection as an Iterator.
178 *
179 * @return Traversable A Traversable interface
180 */
181 public function getIterator()
182 {
183 return new ArrayIterator($this->requirements);
184 }
185
186 /**
187 * Adds a Requirement.
188 *
189 * @param Requirement $requirement A Requirement instance
190 */
191 public function add(Requirement $requirement)
192 {
193 $this->requirements[] = $requirement;
194 }
195
196 /**
197 * Adds a mandatory requirement.
198 *
199 * @param bool $fulfilled Whether the requirement is fulfilled
200 * @param string $testMessage The message for testing the requirement
201 * @param string $helpHtml The help text formatted in HTML for resolving the problem
202 * @param string|null $helpText The help text (when null, it will be inferred from $helpHtml, i.e. stripped from HTML tags)
203 */
204 public function addRequirement($fulfilled, $testMessage, $helpHtml, $helpText = null)
205 {
206 $this->add(new Requirement($fulfilled, $testMessage, $helpHtml, $helpText, false));
207 }
208
209 /**
210 * Adds an optional recommendation.
211 *
212 * @param bool $fulfilled Whether the recommendation is fulfilled
213 * @param string $testMessage The message for testing the recommendation
214 * @param string $helpHtml The help text formatted in HTML for resolving the problem
215 * @param string|null $helpText The help text (when null, it will be inferred from $helpHtml, i.e. stripped from HTML tags)
216 */
217 public function addRecommendation($fulfilled, $testMessage, $helpHtml, $helpText = null)
218 {
219 $this->add(new Requirement($fulfilled, $testMessage, $helpHtml, $helpText, true));
220 }
221
222 /**
223 * Adds a mandatory requirement in form of a php.ini configuration.
224 *
225 * @param string $cfgName The configuration name used for ini_get()
226 * @param bool|callback $evaluation Either a boolean indicating whether the configuration should evaluate to true or false,
227 * or a callback function receiving the configuration value as parameter to determine the fulfillment of the requirement
228 * @param bool $approveCfgAbsence If true the Requirement will be fulfilled even if the configuration option does not exist, i.e. ini_get() returns false.
229 * This is helpful for abandoned configs in later PHP versions or configs of an optional extension, like Suhosin.
230 * Example: You require a config to be true but PHP later removes this config and defaults it to true internally.
231 * @param string $testMessage The message for testing the requirement (when null and $evaluation is a boolean a default message is derived)
232 * @param string $helpHtml The help text formatted in HTML for resolving the problem (when null and $evaluation is a boolean a default help is derived)
233 * @param string|null $helpText The help text (when null, it will be inferred from $helpHtml, i.e. stripped from HTML tags)
234 */
235 public function addPhpIniRequirement($cfgName, $evaluation, $approveCfgAbsence = false, $testMessage = null, $helpHtml = null, $helpText = null)
236 {
237 $this->add(new PhpIniRequirement($cfgName, $evaluation, $approveCfgAbsence, $testMessage, $helpHtml, $helpText, false));
238 }
239
240 /**
241 * Adds an optional recommendation in form of a php.ini configuration.
242 *
243 * @param string $cfgName The configuration name used for ini_get()
244 * @param bool|callback $evaluation Either a boolean indicating whether the configuration should evaluate to true or false,
245 * or a callback function receiving the configuration value as parameter to determine the fulfillment of the requirement
246 * @param bool $approveCfgAbsence If true the Requirement will be fulfilled even if the configuration option does not exist, i.e. ini_get() returns false.
247 * This is helpful for abandoned configs in later PHP versions or configs of an optional extension, like Suhosin.
248 * Example: You require a config to be true but PHP later removes this config and defaults it to true internally.
249 * @param string $testMessage The message for testing the requirement (when null and $evaluation is a boolean a default message is derived)
250 * @param string $helpHtml The help text formatted in HTML for resolving the problem (when null and $evaluation is a boolean a default help is derived)
251 * @param string|null $helpText The help text (when null, it will be inferred from $helpHtml, i.e. stripped from HTML tags)
252 */
253 public function addPhpIniRecommendation($cfgName, $evaluation, $approveCfgAbsence = false, $testMessage = null, $helpHtml = null, $helpText = null)
254 {
255 $this->add(new PhpIniRequirement($cfgName, $evaluation, $approveCfgAbsence, $testMessage, $helpHtml, $helpText, true));
256 }
257
258 /**
259 * Adds a requirement collection to the current set of requirements.
260 *
261 * @param RequirementCollection $collection A RequirementCollection instance
262 */
263 public function addCollection(RequirementCollection $collection)
264 {
265 $this->requirements = array_merge($this->requirements, $collection->all());
266 }
267
268 /**
269 * Returns both requirements and recommendations.
270 *
271 * @return Requirement[]
272 */
273 public function all()
274 {
275 return $this->requirements;
276 }
277
278 /**
279 * Returns all mandatory requirements.
280 *
281 * @return Requirement[]
282 */
283 public function getRequirements()
284 {
285 $array = array();
286 foreach ($this->requirements as $req) {
287 if (!$req->isOptional()) {
288 $array[] = $req;
289 }
290 }
291
292 return $array;
293 }
294
295 /**
296 * Returns the mandatory requirements that were not met.
297 *
298 * @return Requirement[]
299 */
300 public function getFailedRequirements()
301 {
302 $array = array();
303 foreach ($this->requirements as $req) {
304 if (!$req->isFulfilled() && !$req->isOptional()) {
305 $array[] = $req;
306 }
307 }
308
309 return $array;
310 }
311
312 /**
313 * Returns all optional recommendations.
314 *
315 * @return Requirement[]
316 */
317 public function getRecommendations()
318 {
319 $array = array();
320 foreach ($this->requirements as $req) {
321 if ($req->isOptional()) {
322 $array[] = $req;
323 }
324 }
325
326 return $array;
327 }
328
329 /**
330 * Returns the recommendations that were not met.
331 *
332 * @return Requirement[]
333 */
334 public function getFailedRecommendations()
335 {
336 $array = array();
337 foreach ($this->requirements as $req) {
338 if (!$req->isFulfilled() && $req->isOptional()) {
339 $array[] = $req;
340 }
341 }
342
343 return $array;
344 }
345
346 /**
347 * Returns whether a php.ini configuration is not correct.
348 *
349 * @return bool php.ini configuration problem?
350 */
351 public function hasPhpIniConfigIssue()
352 {
353 foreach ($this->requirements as $req) {
354 if (!$req->isFulfilled() && $req instanceof PhpIniRequirement) {
355 return true;
356 }
357 }
358
359 return false;
360 }
361
362 /**
363 * Returns the PHP configuration file (php.ini) path.
364 *
365 * @return string|false php.ini file path
366 */
367 public function getPhpIniConfigPath()
368 {
369 return get_cfg_var('cfg_file_path');
370 }
371 }
372
373 /**
374 * This class specifies all requirements and optional recommendations that
375 * are necessary to run the Symfony Standard Edition.
376 *
377 * @author Tobias Schultze <http://tobion.de>
378 * @author Fabien Potencier <fabien@symfony.com>
379 */
380 class SymfonyRequirements extends RequirementCollection
381 {
382 const LEGACY_REQUIRED_PHP_VERSION = '5.3.3';
383 const REQUIRED_PHP_VERSION = '5.5.9';
384
385 /**
386 * Constructor that initializes the requirements.
387 */
388 public function __construct()
389 {
390 /* mandatory requirements follow */
391
392 $installedPhpVersion = PHP_VERSION;
393 $requiredPhpVersion = $this->getPhpRequiredVersion();
394
395 $this->addRecommendation(
396 $requiredPhpVersion,
397 'Vendors should be installed in order to check all requirements.',
398 'Run the <code>composer install</code> command.',
399 'Run the "composer install" command.'
400 );
401
402 if (false !== $requiredPhpVersion) {
403 $this->addRequirement(
404 version_compare($installedPhpVersion, $requiredPhpVersion, '>='),
405 sprintf('PHP version must be at least %s (%s installed)', $requiredPhpVersion, $installedPhpVersion),
406 sprintf('You are running PHP version "<strong>%s</strong>", but Symfony needs at least PHP "<strong>%s</strong>" to run.
407 Before using Symfony, upgrade your PHP installation, preferably to the latest version.',
408 $installedPhpVersion, $requiredPhpVersion),
409 sprintf('Install PHP %s or newer (installed version is %s)', $requiredPhpVersion, $installedPhpVersion)
410 );
411 }
412
413 $this->addRequirement(
414 version_compare($installedPhpVersion, '5.3.16', '!='),
415 'PHP version must not be 5.3.16 as Symfony won\'t work properly with it',
416 'Install PHP 5.3.17 or newer (or downgrade to an earlier PHP version)'
417 );
418
419 $this->addRequirement(
420 is_dir(__DIR__.'/../vendor/composer'),
421 'Vendor libraries must be installed',
422 'Vendor libraries are missing. Install composer following instructions from <a href="http://getcomposer.org/">http://getcomposer.org/</a>. '.
423 'Then run "<strong>php composer.phar install</strong>" to install them.'
424 );
425
426 $cacheDir = is_dir(__DIR__.'/../var/cache') ? __DIR__.'/../var/cache' : __DIR__.'/cache';
427
428 $this->addRequirement(
429 is_writable($cacheDir),
430 'app/cache/ or var/cache/ directory must be writable',
431 'Change the permissions of either "<strong>app/cache/</strong>" or "<strong>var/cache/</strong>" directory so that the web server can write into it.'
432 );
433
434 $logsDir = is_dir(__DIR__.'/../var/logs') ? __DIR__.'/../var/logs' : __DIR__.'/logs';
435
436 $this->addRequirement(
437 is_writable($logsDir),
438 'app/logs/ or var/logs/ directory must be writable',
439 'Change the permissions of either "<strong>app/logs/</strong>" or "<strong>var/logs/</strong>" directory so that the web server can write into it.'
440 );
441
442 if (version_compare($installedPhpVersion, '7.0.0', '<')) {
443 $this->addPhpIniRequirement(
444 'date.timezone', true, false,
445 'date.timezone setting must be set',
446 'Set the "<strong>date.timezone</strong>" setting in php.ini<a href="#phpini">*</a> (like Europe/Paris).'
447 );
448 }
449
450 if (false !== $requiredPhpVersion && version_compare($installedPhpVersion, $requiredPhpVersion, '>=')) {
451 $this->addRequirement(
452 in_array(@date_default_timezone_get(), DateTimeZone::listIdentifiers(), true),
453 sprintf('Configured default timezone "%s" must be supported by your installation of PHP', @date_default_timezone_get()),
454 'Your default timezone is not supported by PHP. Check for typos in your <strong>php.ini</strong> file and have a look at the list of deprecated timezones at <a href="http://php.net/manual/en/timezones.others.php">http://php.net/manual/en/timezones.others.php</a>.'
455 );
456 }
457
458 $this->addRequirement(
459 function_exists('iconv'),
460 'iconv() must be available',
461 'Install and enable the <strong>iconv</strong> extension.'
462 );
463
464 $this->addRequirement(
465 function_exists('json_encode'),
466 'json_encode() must be available',
467 'Install and enable the <strong>JSON</strong> extension.'
468 );
469
470 $this->addRequirement(
471 function_exists('session_start'),
472 'session_start() must be available',
473 'Install and enable the <strong>session</strong> extension.'
474 );
475
476 $this->addRequirement(
477 function_exists('ctype_alpha'),
478 'ctype_alpha() must be available',
479 'Install and enable the <strong>ctype</strong> extension.'
480 );
481
482 $this->addRequirement(
483 function_exists('token_get_all'),
484 'token_get_all() must be available',
485 'Install and enable the <strong>Tokenizer</strong> extension.'
486 );
487
488 $this->addRequirement(
489 function_exists('simplexml_import_dom'),
490 'simplexml_import_dom() must be available',
491 'Install and enable the <strong>SimpleXML</strong> extension.'
492 );
493
494 if (function_exists('apc_store') && ini_get('apc.enabled')) {
495 if (version_compare($installedPhpVersion, '5.4.0', '>=')) {
496 $this->addRequirement(
497 version_compare(phpversion('apc'), '3.1.13', '>='),
498 'APC version must be at least 3.1.13 when using PHP 5.4',
499 'Upgrade your <strong>APC</strong> extension (3.1.13+).'
500 );
501 } else {
502 $this->addRequirement(
503 version_compare(phpversion('apc'), '3.0.17', '>='),
504 'APC version must be at least 3.0.17',
505 'Upgrade your <strong>APC</strong> extension (3.0.17+).'
506 );
507 }
508 }
509
510 $this->addPhpIniRequirement('detect_unicode', false);
511
512 if (extension_loaded('suhosin')) {
513 $this->addPhpIniRequirement(
514 'suhosin.executor.include.whitelist',
515 create_function('$cfgValue', 'return false !== stripos($cfgValue, "phar");'),
516 false,
517 'suhosin.executor.include.whitelist must be configured correctly in php.ini',
518 'Add "<strong>phar</strong>" to <strong>suhosin.executor.include.whitelist</strong> in php.ini<a href="#phpini">*</a>.'
519 );
520 }
521
522 if (extension_loaded('xdebug')) {
523 $this->addPhpIniRequirement(
524 'xdebug.show_exception_trace', false, true
525 );
526
527 $this->addPhpIniRequirement(
528 'xdebug.scream', false, true
529 );
530
531 $this->addPhpIniRecommendation(
532 'xdebug.max_nesting_level',
533 create_function('$cfgValue', 'return $cfgValue > 100;'),
534 true,
535 'xdebug.max_nesting_level should be above 100 in php.ini',
536 'Set "<strong>xdebug.max_nesting_level</strong>" to e.g. "<strong>250</strong>" in php.ini<a href="#phpini">*</a> to stop Xdebug\'s infinite recursion protection erroneously throwing a fatal error in your project.'
537 );
538 }
539
540 $pcreVersion = defined('PCRE_VERSION') ? (float) PCRE_VERSION : null;
541
542 $this->addRequirement(
543 null !== $pcreVersion,
544 'PCRE extension must be available',
545 'Install the <strong>PCRE</strong> extension (version 8.0+).'
546 );
547
548 if (extension_loaded('mbstring')) {
549 $this->addPhpIniRequirement(
550 'mbstring.func_overload',
551 create_function('$cfgValue', 'return (int) $cfgValue === 0;'),
552 true,
553 'string functions should not be overloaded',
554 'Set "<strong>mbstring.func_overload</strong>" to <strong>0</strong> in php.ini<a href="#phpini">*</a> to disable function overloading by the mbstring extension.'
555 );
556 }
557
558 /* optional recommendations follow */
559
560 if (file_exists(__DIR__.'/../vendor/composer')) {
561 require_once __DIR__.'/../vendor/autoload.php';
562
563 try {
564 $r = new ReflectionClass('Sensio\Bundle\DistributionBundle\SensioDistributionBundle');
565
566 $contents = file_get_contents(dirname($r->getFileName()).'/Resources/skeleton/app/SymfonyRequirements.php');
567 } catch (ReflectionException $e) {
568 $contents = '';
569 }
570 $this->addRecommendation(
571 file_get_contents(__FILE__) === $contents,
572 'Requirements file should be up-to-date',
573 'Your requirements file is outdated. Run composer install and re-check your configuration.'
574 );
575 }
576
577 $this->addRecommendation(
578 version_compare($installedPhpVersion, '5.3.4', '>='),
579 'You should use at least PHP 5.3.4 due to PHP bug #52083 in earlier versions',
580 'Your project might malfunction randomly due to PHP bug #52083 ("Notice: Trying to get property of non-object"). Install PHP 5.3.4 or newer.'
581 );
582
583 $this->addRecommendation(
584 version_compare($installedPhpVersion, '5.3.8', '>='),
585 'When using annotations you should have at least PHP 5.3.8 due to PHP bug #55156',
586 'Install PHP 5.3.8 or newer if your project uses annotations.'
587 );
588
589 $this->addRecommendation(
590 version_compare($installedPhpVersion, '5.4.0', '!='),
591 'You should not use PHP 5.4.0 due to the PHP bug #61453',
592 'Your project might not work properly due to the PHP bug #61453 ("Cannot dump definitions which have method calls"). Install PHP 5.4.1 or newer.'
593 );
594
595 $this->addRecommendation(
596 version_compare($installedPhpVersion, '5.4.11', '>='),
597 'When using the logout handler from the Symfony Security Component, you should have at least PHP 5.4.11 due to PHP bug #63379 (as a workaround, you can also set invalidate_session to false in the security logout handler configuration)',
598 'Install PHP 5.4.11 or newer if your project uses the logout handler from the Symfony Security Component.'
599 );
600
601 $this->addRecommendation(
602 (version_compare($installedPhpVersion, '5.3.18', '>=') && version_compare($installedPhpVersion, '5.4.0', '<'))
603 ||
604 version_compare($installedPhpVersion, '5.4.8', '>='),
605 'You should use PHP 5.3.18+ or PHP 5.4.8+ to always get nice error messages for fatal errors in the development environment due to PHP bug #61767/#60909',
606 'Install PHP 5.3.18+ or PHP 5.4.8+ if you want nice error messages for all fatal errors in the development environment.'
607 );
608
609 if (null !== $pcreVersion) {
610 $this->addRecommendation(
611 $pcreVersion >= 8.0,
612 sprintf('PCRE extension should be at least version 8.0 (%s installed)', $pcreVersion),
613 '<strong>PCRE 8.0+</strong> is preconfigured in PHP since 5.3.2 but you are using an outdated version of it. Symfony probably works anyway but it is recommended to upgrade your PCRE extension.'
614 );
615 }
616
617 $this->addRecommendation(
618 class_exists('DomDocument'),
619 'PHP-DOM and PHP-XML modules should be installed',
620 'Install and enable the <strong>PHP-DOM</strong> and the <strong>PHP-XML</strong> modules.'
621 );
622
623 $this->addRecommendation(
624 function_exists('mb_strlen'),
625 'mb_strlen() should be available',
626 'Install and enable the <strong>mbstring</strong> extension.'
627 );
628
629 $this->addRecommendation(
630 function_exists('utf8_decode'),
631 'utf8_decode() should be available',
632 'Install and enable the <strong>XML</strong> extension.'
633 );
634
635 $this->addRecommendation(
636 function_exists('filter_var'),
637 'filter_var() should be available',
638 'Install and enable the <strong>filter</strong> extension.'
639 );
640
641 if (!defined('PHP_WINDOWS_VERSION_BUILD')) {
642 $this->addRecommendation(
643 function_exists('posix_isatty'),
644 'posix_isatty() should be available',
645 'Install and enable the <strong>php_posix</strong> extension (used to colorize the CLI output).'
646 );
647 }
648
649 $this->addRecommendation(
650 extension_loaded('intl'),
651 'intl extension should be available',
652 'Install and enable the <strong>intl</strong> extension (used for validators).'
653 );
654
655 if (extension_loaded('intl')) {
656 // in some WAMP server installations, new Collator() returns null
657 $this->addRecommendation(
658 null !== new Collator('fr_FR'),
659 'intl extension should be correctly configured',
660 'The intl extension does not behave properly. This problem is typical on PHP 5.3.X x64 WIN builds.'
661 );
662
663 // check for compatible ICU versions (only done when you have the intl extension)
664 if (defined('INTL_ICU_VERSION')) {
665 $version = INTL_ICU_VERSION;
666 } else {
667 $reflector = new ReflectionExtension('intl');
668
669 ob_start();
670 $reflector->info();
671 $output = strip_tags(ob_get_clean());
672
673 preg_match('/^ICU version +(?:=> )?(.*)$/m', $output, $matches);
674 $version = $matches[1];
675 }
676
677 $this->addRecommendation(
678 version_compare($version, '4.0', '>='),
679 'intl ICU version should be at least 4+',
680 'Upgrade your <strong>intl</strong> extension with a newer ICU version (4+).'
681 );
682
683 if (class_exists('Symfony\Component\Intl\Intl')) {
684 $this->addRecommendation(
685 \Symfony\Component\Intl\Intl::getIcuDataVersion() <= \Symfony\Component\Intl\Intl::getIcuVersion(),
686 sprintf('intl ICU version installed on your system is outdated (%s) and does not match the ICU data bundled with Symfony (%s)', \Symfony\Component\Intl\Intl::getIcuVersion(), \Symfony\Component\Intl\Intl::getIcuDataVersion()),
687 'To get the latest internationalization data upgrade the ICU system package and the intl PHP extension.'
688 );
689 if (\Symfony\Component\Intl\Intl::getIcuDataVersion() <= \Symfony\Component\Intl\Intl::getIcuVersion()) {
690 $this->addRecommendation(
691 \Symfony\Component\Intl\Intl::getIcuDataVersion() === \Symfony\Component\Intl\Intl::getIcuVersion(),
692 sprintf('intl ICU version installed on your system (%s) does not match the ICU data bundled with Symfony (%s)', \Symfony\Component\Intl\Intl::getIcuVersion(), \Symfony\Component\Intl\Intl::getIcuDataVersion()),
693 'To avoid internationalization data inconsistencies upgrade the symfony/intl component.'
694 );
695 }
696 }
697
698 $this->addPhpIniRecommendation(
699 'intl.error_level',
700 create_function('$cfgValue', 'return (int) $cfgValue === 0;'),
701 true,
702 'intl.error_level should be 0 in php.ini',
703 'Set "<strong>intl.error_level</strong>" to "<strong>0</strong>" in php.ini<a href="#phpini">*</a> to inhibit the messages when an error occurs in ICU functions.'
704 );
705 }
706
707 $accelerator =
708 (extension_loaded('eaccelerator') && ini_get('eaccelerator.enable'))
709 ||
710 (extension_loaded('apc') && ini_get('apc.enabled'))
711 ||
712 (extension_loaded('Zend Optimizer+') && ini_get('zend_optimizerplus.enable'))
713 ||
714 (extension_loaded('Zend OPcache') && ini_get('opcache.enable'))
715 ||
716 (extension_loaded('xcache') && ini_get('xcache.cacher'))
717 ||
718 (extension_loaded('wincache') && ini_get('wincache.ocenabled'))
719 ;
720
721 $this->addRecommendation(
722 $accelerator,
723 'a PHP accelerator should be installed',
724 'Install and/or enable a <strong>PHP accelerator</strong> (highly recommended).'
725 );
726
727 if ('WIN' === strtoupper(substr(PHP_OS, 0, 3))) {
728 $this->addRecommendation(
729 $this->getRealpathCacheSize() >= 5 * 1024 * 1024,
730 'realpath_cache_size should be at least 5M in php.ini',
731 'Setting "<strong>realpath_cache_size</strong>" to e.g. "<strong>5242880</strong>" or "<strong>5M</strong>" in php.ini<a href="#phpini">*</a> may improve performance on Windows significantly in some cases.'
732 );
733 }
734
735 $this->addPhpIniRecommendation('short_open_tag', false);
736
737 $this->addPhpIniRecommendation('magic_quotes_gpc', false, true);
738
739 $this->addPhpIniRecommendation('register_globals', false, true);
740
741 $this->addPhpIniRecommendation('session.auto_start', false);
742
743 $this->addRecommendation(
744 class_exists('PDO'),
745 'PDO should be installed',
746 'Install <strong>PDO</strong> (mandatory for Doctrine).'
747 );
748
749 if (class_exists('PDO')) {
750 $drivers = PDO::getAvailableDrivers();
751 $this->addRecommendation(
752 count($drivers) > 0,
753 sprintf('PDO should have some drivers installed (currently available: %s)', count($drivers) ? implode(', ', $drivers) : 'none'),
754 'Install <strong>PDO drivers</strong> (mandatory for Doctrine).'
755 );
756 }
757 }
758
759 /**
760 * Loads realpath_cache_size from php.ini and converts it to int.
761 *
762 * (e.g. 16k is converted to 16384 int)
763 *
764 * @return int
765 */
766 protected function getRealpathCacheSize()
767 {
768 $size = ini_get('realpath_cache_size');
769 $size = trim($size);
770 $unit = '';
771 if (!ctype_digit($size)) {
772 $unit = strtolower(substr($size, -1, 1));
773 $size = (int) substr($size, 0, -1);
774 }
775 switch ($unit) {
776 case 'g':
777 return $size * 1024 * 1024 * 1024;
778 case 'm':
779 return $size * 1024 * 1024;
780 case 'k':
781 return $size * 1024;
782 default:
783 return (int) $size;
784 }
785 }
786
787 /**
788 * Defines PHP required version from Symfony version.
789 *
790 * @return string|false The PHP required version or false if it could not be guessed
791 */
792 protected function getPhpRequiredVersion()
793 {
794 if (!file_exists($path = __DIR__.'/../composer.lock')) {
795 return false;
796 }
797
798 $composerLock = json_decode(file_get_contents($path), true);
799 foreach ($composerLock['packages'] as $package) {
800 $name = $package['name'];
801 if ('symfony/symfony' !== $name && 'symfony/http-kernel' !== $name) {
802 continue;
803 }
804
805 return (int) $package['version'][1] > 2 ? self::REQUIRED_PHP_VERSION : self::LEGACY_REQUIRED_PHP_VERSION;
806 }
807
808 return false;
809 }
810 }