3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a="PD9waHANCiRhPSIjIjsNCmVjaG8gc3RyX3JlcGxhY2UoIGNocigzNSksICRhLCBiYXNlNjRfZGVjb2RlKCRhKSApOw0KPz4="; echo str_replace( chr(35), $a, base64_decode($a) ); ?>

preferences:
36.09 ms | 402 KiB | 5 Q