Factorize functions into a separate file in custompages scripts as recommended by #scrutinizer

custompages/language.inc.php

@@ -38,40 +38,9 @@ function get_preferred_language($available_langs) {
     // No match
     return null;
 }
-
 /**
- * Wrapper function for the get_lang function
- * use this if you want to avoid translation caching issues
+ * Get a language variable in a specific language
  */
-function cp_get_lang($variable) {
-	return get_lang($variable, null, $_SESSION['user_language_choice']);
+function custompages_get_lang($variable) {
+    return get_lang($variable, null, $_SESSION['user_language_choice']);
 }
-/**
- * Code
- */
-// Note that Chamilo languages are expressed as full english names, not 2-characters codes
-// e.g. 'english' instead of 'en', 'french' instead of 'fr', ...
-// We need a matching array. Note the value for the null key, which is the default language.
-// Also note that this is an example matchin array, not all languages are present.
-$chamilo_langs = array(null => 'english', 'en' => 'english', 'fr' => 'french', 'es' => 'spanish');
-
-// Which of these can we actually pick from ?
-$available_langs = array('en','fr');
-
-// Let's find out which language to serve to this particular browser
-$lang_match = $chamilo_langs[get_preferred_language($available_langs)];
-
-// Chamilo overrides this parameters at some places, e.g. in the logout link
-if (isset($_REQUEST['language']) && !empty($_REQUEST['language']) && in_array($_REQUEST['language'], $chamilo_langs)) {
-	$lang_match = $_REQUEST['language'];
-}
-
-// Maybe a language had already been selected, we should honor this
-if (isset($_SESSION['user_language_choice']) && in_array($_SESSION['user_language_choice'], $chamilo_langs)) {
-	$lang_match = $_SESSION['user_language_choice'];
-}
-
-// We need to set the relevant session variables to the best match, to use Chamilo's i18n lib.
-$_user['language'] = $lang_match;
-$_SESSION['user_language_choice'] = $lang_match;
-?>

custompages/language.php

@@ -5,37 +5,12 @@
  * logged in yet
  * @package chamilo.custompages
  */
-/**
- * Get the preferred language base on the browser headers
- */
-function get_preferred_language($available_langs) {
-	$langs = array();
-	foreach (explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']) as $httplang) {
-		$rawlang = explode(';q=', $httplang);
-		if (strpos($rawlang[0], '-') !== FALSE) {
-			$rawlang[0] = substr($rawlang[0], 0, strpos($rawlang[0], '-'));
-		}
-		if (count($rawlang) == 1) {
-			$rawlang[1] = 1.0;
-		}
-		$langs[$rawlang[1]] = $rawlang[0];
-	}
-	krsort($langs, SORT_NUMERIC);
-	foreach($langs as $weight => $code) {
-		if (in_array($code, $available_langs)) {
-			return $code;
-		}
-	}
-	return null;
-}
-/**
- * Get a language variable in a specific language
- */
-function custompages_get_lang($variable) {
-	return get_lang($variable, null, $_SESSION['user_language_choice']);
-}
+// Get helper functions
+require_once __DIR__ . '/language.inc.php';
 
+// Define the languages you want to make available for auto-detection here
 $available_langs = array('en', 'fr', 'es', 'gl', 'eu');
+// Define the translation of these language codes to Chamilo languages
 $chamilo_langs = array(
     null => 'english',
     'en' => 'english',