3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items=[3,7,2,9,2,3,8]; $c = function($a, $b) { return $a <=> $b; }; uasort($items, $c); print_r($items);
Output for 7.0.0 - 7.0.33, 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 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
Array ( [2] => 2 [4] => 2 [0] => 3 [5] => 3 [1] => 7 [6] => 8 [3] => 9 )
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 ( [2] => 2 [4] => 2 [0] => 3 [5] => 3 [1] => 7 [6] => 8 [3] => 9 )
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '>' in /in/eQlJT on line 5
Process exited with code 255.

preferences:
222.8 ms | 401 KiB | 289 Q