1 files changed, 16 insertions, 17 deletions

diff --git a/application/config/ConfigJson.php b/application/config/ConfigJson.php
index cbafbf6d..94693c86 100644
--- a/application/config/ConfigJson.php
+++ b/application/config/ConfigJson.php
@@ -8,29 +8,15 @@
 class ConfigJson implements ConfigIO
 {
     /**
-     * The JSON data is wrapped in a PHP file for security purpose.
-     * This way, even if the file is accessible, credentials and configuration won't be exposed.
-     *
-     * @var string PHP start tag and comment tag.
-     */
-    public static $PHP_HEADER;
-
-    public function __construct()
-    {
-        // The field can't be initialized directly with concatenation before PHP 5.6.
-        self::$PHP_HEADER = '<?php /*'. PHP_EOL;
-    }
-
-    /**
      * @inheritdoc
      */
     function read($filepath)
     {
-        if (! file_exists($filepath) || ! is_readable($filepath)) {
+        if (! is_readable($filepath)) {
             return array();
         }
         $data = file_get_contents($filepath);
-        $data = str_replace(self::$PHP_HEADER, '', $data);
+        $data = str_replace(self::getPhpHeaders(), '', $data);
         $data = json_decode($data, true);
         if ($data === null) {
             $error = json_last_error();
@@ -46,7 +32,7 @@ class ConfigJson implements ConfigIO
     {
         // JSON_PRETTY_PRINT is available from PHP 5.4.
         $print = defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 0;
-        $data = self::$PHP_HEADER . json_encode($conf, $print);
+        $data = self::getPhpHeaders() . json_encode($conf, $print);
         if (!file_put_contents($filepath, $data)) {
             throw new IOException(
                 $filepath,
@@ -63,4 +49,17 @@ class ConfigJson implements ConfigIO
     {
         return '.json.php';
     }
+
+    /**
+     * The JSON data is wrapped in a PHP file for security purpose.
+     * This way, even if the file is accessible, credentials and configuration won't be exposed.
+     *
+     * Note: this isn't a static field because concatenation isn't supported in field declaration before PHP 5.6.
+     *
+     * @return string PHP start tag and comment tag.
+     */
+    public static function getPhpHeaders()
+    {
+        return '<?php /*'. PHP_EOL;
+    }
 }