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<?php $mainArray = array( 0 =>array( "key1" => array(7,4,5), 'key2' => array('cc','aa') ) ); foreach($mainArray as $secondArray){ foreach($secondArray as $array){ array_multisort($array); var_dump($array); } } ?>
Output for 4.3.0 - 7.1.0
array(3) { [0]=> int(4) [1]=> int(5) [2]=> int(7) } array(2) { [0]=> string(2) "aa" [1]=> string(2) "cc" }