3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding('UTF-8'); $text = <<<TEXT Павел Дуров fsdf sdf sdf TEXT; $filter = ''; $filter = mb_strtolower($filter); $parts = mb_split('[\x00-\x20]+', $filter); $parts = array_map('trim', $parts); $parts = array_filter($parts); $parts = array_map('preg_quote', $parts); $filter = implode('.*', $parts); echo preg_match("~{$filter}~uis", $text);
preferences:
36.46 ms | 402 KiB | 5 Q