3v4l.org

run code in 300+ PHP versions simultaneously
<?php is_null();is_null(null);is_null(null, null);is_null(null, null, null);strpos();strpos(null);strpos(null, null);strpos(null, null, null);strpos(null, null, null, null);

preferences:
37.18 ms | 402 KiB | 5 Q