3v4l.org

run code in 300+ PHP versions simultaneously
<?php //bin2hex(strrev(base64_encode($secret))); $x = "3d3d516343746d4d6d6c315669563362"; $y = base64_decode(strrev(hex2bin($x))); echo $y;

preferences:
39.73 ms | 402 KiB | 5 Q