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<?php $display = [ ['dateChanged' => '2019-09-17T19:42:56'], ['dateChanged' => '2018-09-17T19:42:56'], ['dateChanged' => '2017-09-17T19:42:56'], ['dateChanged' => '2030-09-17T19:42:56'] ]; usort($display, function($a, $b) { $ad = new DateTime($a['dateChanged']); $bd = new DateTime($b['dateChanged']); if ($ad == $bd) { return 0; } return $ad < $bd ? -1 : 1; }); print_r($display);
Output for 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 - 8.3.4, 8.3.6
Array ( [0] => Array ( [dateChanged] => 2017-09-17T19:42:56 ) [1] => Array ( [dateChanged] => 2018-09-17T19:42:56 ) [2] => Array ( [dateChanged] => 2019-09-17T19:42:56 ) [3] => Array ( [dateChanged] => 2030-09-17T19:42:56 ) )
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] => Array ( [dateChanged] => 2017-09-17T19:42:56 ) [1] => Array ( [dateChanged] => 2018-09-17T19:42:56 ) [2] => Array ( [dateChanged] => 2019-09-17T19:42:56 ) [3] => Array ( [dateChanged] => 2030-09-17T19:42:56 ) )

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