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run code in 300+ PHP versions simultaneously
<?php $test = [ [ 'name' => 'A', 'value' => 1, ], [ 'name' => 'B', ], [ 'name' => 'C', ], ]; usort($test, function ($aObject, $bObject) { $a = $aObject['value'] ?? null; $b = $bObject['value'] ?? null; if ($a == $b) { return 0; } return $a > $b ? 1 : -1; }); var_dump($test);
Output for 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(3) { [0]=> array(1) { ["name"]=> string(1) "B" } [1]=> array(1) { ["name"]=> string(1) "C" } [2]=> array(2) { ["name"]=> string(1) "A" ["value"]=> int(1) } }
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(3) { [0]=> array(1) { ["name"]=> string(1) "B" } [1]=> array(1) { ["name"]=> string(1) "C" } [2]=> array(2) { ["name"]=> string(1) "A" ["value"]=> int(1) } }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
array(3) { [0]=> array(1) { ["name"]=> string(1) "C" } [1]=> array(1) { ["name"]=> string(1) "B" } [2]=> array(2) { ["name"]=> string(1) "A" ["value"]=> int(1) } }
preferences:
105.7 ms | 402 KiB | 152 Q