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<?php function sort3210ASC($a, $b) { return [$a[3], $a[2], $a[1], $a[0]] <=> [$b[3], $b[2], $b[1], $b[0]]; } $dud = [[2,3,"2018-07-19","08:23",1], [2,3,"2018-07-19","08:30",2], [2,1,"2018-07-19","08:14",3], [2,4,"2018-07-19","07:11",4], [2,1,"2018-07-19","07:17",5], [2,9,"2018-07-19","07:31",6], [2,4,"2018-07-19","05:06",7], [2,6,"2018-07-18","08:10",8], [2,9,"2018-07-19","07:20",9], [1,7,"2018-07-19","08:27",10], [1,5,"2018-07-19","08:11",11], [1,7,"2018-07-18","08:22",12], [1,5,"2018-07-19","08:09",13], [2,6,"2018-07-18","07:12",14], [1,7,"2018-07-18","08:21",15], [1,7,"2018-07-19","07:09",16]]; usort($dud, 'sort3210ASC'); var_export($dud);
Output for 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 - 8.1.29, 8.2.0 - 8.2.23, 8.3.0 - 8.3.11
array ( 0 => array ( 0 => 2, 1 => 4, 2 => '2018-07-19', 3 => '05:06', 4 => 7, ), 1 => array ( 0 => 1, 1 => 7, 2 => '2018-07-19', 3 => '07:09', 4 => 16, ), 2 => array ( 0 => 2, 1 => 4, 2 => '2018-07-19', 3 => '07:11', 4 => 4, ), 3 => array ( 0 => 2, 1 => 6, 2 => '2018-07-18', 3 => '07:12', 4 => 14, ), 4 => array ( 0 => 2, 1 => 1, 2 => '2018-07-19', 3 => '07:17', 4 => 5, ), 5 => array ( 0 => 2, 1 => 9, 2 => '2018-07-19', 3 => '07:20', 4 => 9, ), 6 => array ( 0 => 2, 1 => 9, 2 => '2018-07-19', 3 => '07:31', 4 => 6, ), 7 => array ( 0 => 1, 1 => 5, 2 => '2018-07-19', 3 => '08:09', 4 => 13, ), 8 => array ( 0 => 2, 1 => 6, 2 => '2018-07-18', 3 => '08:10', 4 => 8, ), 9 => array ( 0 => 1, 1 => 5, 2 => '2018-07-19', 3 => '08:11', 4 => 11, ), 10 => array ( 0 => 2, 1 => 1, 2 => '2018-07-19', 3 => '08:14', 4 => 3, ), 11 => array ( 0 => 1, 1 => 7, 2 => '2018-07-18', 3 => '08:21', 4 => 15, ), 12 => array ( 0 => 1, 1 => 7, 2 => '2018-07-18', 3 => '08:22', 4 => 12, ), 13 => array ( 0 => 2, 1 => 3, 2 => '2018-07-19', 3 => '08:23', 4 => 1, ), 14 => array ( 0 => 1, 1 => 7, 2 => '2018-07-19', 3 => '08:27', 4 => 10, ), 15 => array ( 0 => 2, 1 => 3, 2 => '2018-07-19', 3 => '08:30', 4 => 2, ), )

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