Online PHP editor | refs for TspIl

<?php $items = json_decode(' [ { "Product": "430400", "Delivery": "Delivered", "Size": "24", "UnitPrice": 9.750000 }, { "Product": "430410", "Delivery": "Delivered", "Size": "26", "UnitPrice": 9.750000 } ]',true); function valIsConsistent($items, $key){ if(count($items) == 0){ return false;//hmmm IDK } $prevVal = $items[0][$key]; foreach($items as $item){ if($item[$key] !== $prevVal){ return false; } } return true; } var_dump($items); var_dump(valIsConsistent($items,'Delivery')); var_dump(valIsConsistent($items,'Size'));