3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo hex2bin(7070); echo hex2bin(implode(array_map(function ($v) { return dechex(ord($v)); }, str_split("toto"))));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
pptoto

preferences:
229.12 ms | 404 KiB | 336 Q