3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = ["4.0.1", "trunk", "branch", "4.1.0", "4.0.3"]; usort($array, fn($a, $b) => ctype_alpha($a . $b) ? $a <=> $b : version_compare($b, $a)); var_export($array);
Output for 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 ( 0 => '4.1.0', 1 => '4.0.3', 2 => '4.0.1', 3 => 'branch', 4 => 'trunk', )
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 ( 0 => '4.1.0', 1 => '4.0.3', 2 => '4.0.1', 3 => 'branch', 4 => 'trunk', )
Output for 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/Qsksd on line 5
Process exited with code 255.
Output for 7.2.0 - 7.2.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ',' or ')' in /in/Qsksd on line 5
Process exited with code 255.

preferences:
148.93 ms | 401 KiB | 175 Q