[Intl] Use cache in EmojiTransliterator::listIDs

lyrixx · lyrixx · commit 4919e11e79be · 2022-08-17T14:31:15.000+02:00
diff --git a/src/Symfony/Component/Intl/Transliterator/EmojiTransliterator.php b/src/Symfony/Component/Intl/Transliterator/EmojiTransliterator.php
@@ -106,9 +106,11 @@ public function getErrorMessage(): string|false
 
     public static function listIDs(): array
     {
-        static $ids;
+        static $ids = [];
 
-        $ids = [];
+        if ($ids) {
+            return $ids;
+        }
 
         foreach (scandir(\dirname(__DIR__).'/Resources/data/transliterator/emoji/') as $file) {
             if (str_ends_with($file, '.php')) {
