3v4l.org

run code in 300+ PHP versions simultaneously
<?php $kw = array(array('v' => 1, 'n' => 'a'), array('v' => 2, 'n' => 'b'), array('v' => 100, 'n' => 'c')); foreach($kw as $kw_key => $kw_data){ $v[$kw_key] = $kw_data['v']; } array_multisort($v, SORT_DESC, $kw); print_r($kw);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 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 - 8.3.6
Array ( [0] => Array ( [v] => 100 [n] => c ) [1] => Array ( [v] => 2 [n] => b ) [2] => Array ( [v] => 1 [n] => a ) )

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204.38 ms | 406 KiB | 359 Q