3v4l.org

run code in 300+ PHP versions simultaneously
<?php function decodeSecret($secret) { return base64_decode(strrev(hex2bin($secret))); } function encodeSecret($secret) { return bin2hex(strrev(base64_encode($secret))); } //$secret = "3d3d516343746d4d6d6c315669563362"; echo base64_decode(strrev(hex2bin('3d3d516343746d4d6d6c315669563362'))); //echo $s2 = base64_decode($secret); //echo $s3 = strrev($s2); //echo hex2bin($s3); echo "\n----------\n"; echo encodeSecret("TEST");
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
oubWYf2kBq ---------- 3d3d415654564556

preferences:
239.77 ms | 404 KiB | 344 Q