3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hex = hex2bin("fd5c2cf96c9f1cc3ef03553fbbe3b3d4d23e609be5cd3a84002185797b22f3642cc40dbbfab93343fcee7a9364a19fbc"); var_dump($hex);
preferences:
58.46 ms | 402 KiB | 5 Q