Online PHP editor | refs for 5WtiB

<?php $rawData = array( array( 'sku' => 'product1', 'quantity' => '3' ), array( 'sku' => 'product2', 'quantity' => '3' ), array( 'sku' => 'product1', 'quantity' => '2' ) ); $collectedData = array(); foreach ($rawData as $value) { $collectedData[$value['sku']] += $value['quantity']; } print_r($collectedData);