h5手机浏览器调起微信支付

官方文档 https://pay.weixin.qq.com/wiki/doc/api/H5.php?chapter=15_4

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>h5</title>
<script src="jquery.js"></script>
<script>
    var _hmt = _hmt || [];
    var pixclPatio = 1;
    document.write(\'<meta name="viewport" content="width=device-width,initial-scale=\'+pixclPatio+\',minimum-scale=\'+pixclPatio+\',maximum-scale=\'+pixclPatio+\',user-scalable=no" />\');
</script>
<script>
function geth5pay(){
    $.ajax({
        url: "http://www.xxx.com/payH5.php",
        type: "POST",
        data: \'\',
        dataType:"text",
        cache:false,
        success: function(msg){
            location.href=msg;
        },
        error:function (XMLHttpRequest, textStatus, errorThrown) {
            alert(XMLHttpRequest.responseText);
        }
    });
}

</script>
</head>

<body>

<a href="javascript:;" onclick="geth5pay()">H5支付</a>
<div id="msg"></div>
</body>
</html>

payH5.php

<?php
ini_set(\'date.timezone\',\'Asia/Shanghai\');
require_once "pay/WxPay.Api.php";
require_once "pay/WxPay.JsApiPay.php";

$input = new WxPayUnifiedOrder();
$input->SetBody("test");
$input->SetAttach("test");
$input->SetOut_trade_no(WxPayConfig::MCHID.date("YmdHis"));
$input->SetTotal_fee("1");
$input->SetTime_start(date("YmdHis"));
$input->SetTime_expire(date("YmdHis", time() + 600));
$input->SetGoods_tag("test");
$input->SetNotify_url("http://www.xxx.com/notify_url.php");
$input->SetTrade_type("MWEB");
$order = WxPayApi::unifiedOrder($input);

echo $order[\'mweb_url\'];