<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);
//include wp libriries and set timezone to HK
require_once('wp-load.php'); 
date_default_timezone_set("Asia/Hong_Kong"); 
if(!isset($_GET['order_id'])){
	echo "missing order id";
} else {
	generate_po($_GET['order_id']);
}