<?php

$json = '{"transactionTime":"2014-10-06T14:49:00-07:00","receipt":"********","transactionType":"TEST","vendor":"comclub","role":"VENDOR","totalAccountAmount":1.00,"paymentMethod":"VISA","totalOrderAmount":1.00,"totalTaxAmount":0.00,"totalShippingAmount":0.00,"currency":"USD","lineItems":[{"itemNo":"1","productTitle":"A passed in title","shippable":false,"recurring":false,"accountAmount":1.00}],"customer":{"shipping":{"firstName":"TEST","lastName":"USER","fullName":"Test User","email":"testuser@somesite.com","address":{}},"billing":{"firstName":"TEST","lastName":"USER","fullName":"Test User","email":"testuser@somesite.com","address":{}}},"version":6.0,"attemptCount":1}';
$order = json_decode($json);

echo "Full dump:";
var_dump($order);

echo "lineItems:\n";
var_dump($order->lineItems);
echo "\n\n";

echo "itemNo:";
var_dump($order->lineItems[0]->itemNo);
echo "\n\n";