Online PHP editor | refs for eFuO7

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