Online PHP editor | refs for 1uv45

<?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, $skill2) { return strcmp($skill1['refCardId'],$skill2['refCardId']); }); foreach($activeSkillList as $key => $value) { $activeSkillList[$key]['index'] = rand(); } print_r($activeSkillList);