Online PHP editor | refs for jAmIP

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