Online PHP editor | refs for YJ4dN

<?php $user = []; $arr = [ 'chatduration' => '124.502','username' => 'bhavin']; foreach($arr as $record){ if (array_key_exists($user[$record['username']],$record)) { $user[$record['username']] = $user[$record['username']] + $record['chatduration']; } else { $user[] = [$record['username']=>$record['chatduration']]; } } print_r($arr);