Online PHP editor | output for d5BYR

<?php $words = array("ӯ","ӯро","ӯт","ғариб","афтода","даст", "ра"); function delLess(&$array, $less = 0, $lang = 'ru') { $english = "qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM"; $russian = "ёйцукенгшщзхъфывапролджэячсмитьбюЁЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭЯЧСМИТЬБЮ"; switch ($lang) { case 'en': return preg_grep('~\A[^'.$english.']{'.$less.',}\z~u', $array); break; case 'ru': return preg_grep('~\A[^'.$russian.']{'.$less.',}\z~u', $array); break; default: throw new Exception('unsupported language'); } } var_dump(delLess($words, 3, 'en'));