[а-я]{1,2})$#', $url)); var_dump(preg_match('#^text/(?P[а-я]{1,2})$#u', $url)); echo '------------', PHP_EOL; $url = 'text/вв'; var_dump(preg_match('#^text/(?P[а-я]{1,2})$#', $url)); var_dump(preg_match('#^text/(?P[а-я]{1,2})$#u', $url));