3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = unpack('Vint/Vint', hash_hmac('md5', str_pad(646, 4, '0', STR_PAD_LEFT), 'default', true)); print_r($array); echo $array['int'] & 16;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( [int] => 1833736845 ) 0
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [int] => 1833736845 ) 0
preferences:
191.27 ms | 402 KiB | 207 Q