Online PHP editor | refs for tij1a

<?php echo "<pre>"; $activeSkillList = array(); $activeSkillList['U1_1021002'] = array('refCardId'=> 'U1_1021002'); $activeSkillList['U3_1052005'] = array('refCardId'=> 'U3_1052005'); $tmp = $activeSkillList; print_r($tmp); uasort($tmp, function($skill1, $skill2) { return $skill2['refCardId'] - $skill1['refCardId']; }); print_r($tmp);