Added language vars checker

Author: ywarnier

main/cron/lang/check_parse_lang.php

@@ -0,0 +1,42 @@
+<?php /* For licensing terms, see /license.txt */
+/**
+ * Cron script to list unused, but defined, language variables
+ * @package chamilo.cron.lang
+ */
+/**
+ * Includes and declarations
+ */
+die();
+require_once '../../inc/global.inc.php';
+require_once api_get_path(SYS_CODE_PATH).'admin/sub_language.class.php';
+$path = api_get_path(SYS_LANG_PATH).'english';
+ini_set('memory_limit','128M');
+/**
+ * Main code
+ */
+$terms = array();
+$list = SubLanguageManager::get_lang_folder_files_list($path);
+$langs = scandir(api_get_path(SYS_LANG_PATH));
+foreach ($langs as $lang) {
+  $dir = api_get_path(SYS_LANG_PATH).$lang;
+  if (is_dir($dir) && substr($lang,0,1) != '.' && !empty($lang)) {
+    echo "$lang...";
+    $ok = true;
+    foreach ($list as $entry) {
+      $file = $dir.'/'.$entry;
+      $out = array();
+      if (is_file($file)) {
+        //$terms = array_merge($terms,SubLanguageManager::get_all_language_variable_in_file($file,true));
+        @exec('php5 -l '.$file,$out);
+        if (substr($out[0],0,2)!='No') {
+          echo $out[0]."\n";
+          $ok = false;
+        }
+      }
+    }
+    if ($ok) {
+      echo "OK\n";
+    }
+  }
+}
+echo "Done\n";