Ticket #38788: 38788.diff

wp-includes/l10n.php

@@ -947 +947 @@
  * The default directory is WP_LANG_DIR.
  *
  * @since 3.0.0
+ * @since 4.7.0 The results are now filtrable.
  *
  * @param string $dir A directory to search for language files.
  *                    Default WP_LANG_DIR.
@@ -955 +956 @@
 function get_available_languages( $dir = null ) {
         $languages = array();
 
-        $lang_files = glob( ( is_null( $dir) ? WP_LANG_DIR : $dir ) . '/*.mo' );
+        $lang_files = glob( ( is_null( $dir ) ? WP_LANG_DIR : $dir ) . '/*.mo' );
         if ( $lang_files ) {
                 foreach ( $lang_files as $lang_file ) {
                         $lang_file = basename( $lang_file, '.mo' );
@@ -966 +967 @@
                 }
         }
 
-        return $languages;
+        /**
+         * Filters the list of available language codes
+         *
+         * @since 4.7.0
+         *
+         * @param array $languages An array of language codes or an empty array.
+         * @param string $dir A directory to search for language files.
+         */
+        return apply_filters( 'get_available_languages', $languages, $dir );
 }
 
 /**