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<?php $your_array = array(0 =>array("codes"=>array(7,4,5)), 1 =>array("codes"=>array(4,45,1))); foreach ($your_array as $array){ array_multisort($array); } var_dump($your_array);
Output for 4.3.0 - 7.1.0
array(2) { [0]=> array(1) { ["codes"]=> array(3) { [0]=> int(7) [1]=> int(4) [2]=> int(5) } } [1]=> array(1) { ["codes"]=> array(3) { [0]=> int(4) [1]=> int(45) [2]=> int(1) } } }