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<?php $arr = ['11/01/2012', '03/16/2022', '12/26/2021', '01/01/2014', '09/02/2013']; usort($arr, function ($a, $b) { return strtotime($a) - strtotime($b); }); print_r($arr);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Array ( [0] => 11/01/2012 [1] => 09/02/2013 [2] => 01/01/2014 [3] => 12/26/2021 [4] => 03/16/2022 )
Output for 5.2.5
Parse error: syntax error, unexpected '[' in /in/JVYpr on line 2
Process exited with code 255.

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