3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hash = crypt('foobar', '_6C/.jjzc'); echo $hash."\n"; // _6C/.jjzcoAyXu0Z0XlM echo crypt('foobar', $hash)."\n"; // _6T7pAW9oacXQ
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
_6C/.jjzcoAyXu0Z0XlM _6C/.jjzcoAyXu0Z0XlM
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17

Process exited with code 139.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/MUY4n on line 5
Process exited with code 255.
preferences:
247.17 ms | 401 KiB | 383 Q