3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = base64_decode('R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs='); $resource = fopen('php://tmp', w); fwrite($resource, $string); fclose($resource); var_dump(mime_content_type('php://tmp'));

preferences:
35.62 ms | 402 KiB | 5 Q