PHP实现微信小程序在线支付功能(代码实例)(2)

wx.request({
   url: 'https://yourhost.com/wxpay/payfee.php',//改成你自己的链接
   data:{
    id: app.globalData.openid,//获取用户openid
    fee:100 //商品价格
   },
   header: {
    'Content-Type': 'application/x-www-form-urlencoded'
   },
   method: 'POST',
   success: function (res) {
    console.log(res.data);
    console.log('调起支付');
    wx.requestPayment({
     'timeStamp': res.data.timeStamp,
     'nonceStr': res.data.nonceStr,
     'package': res.data.package,
     'signType': 'MD5',
     'paySign': res.data.paySign,
     'success': function (res) {
      console.log('success');
      wx.showToast({
       title: '支付成功',
       icon: 'success',
       duration: 3000
      });
     },
     'fail': function (res) {
      console.log(res);
     },
     'complete': function (res) {
      console.log('complete');
     }
    });
   },
   fail: function (res) {
    console.log(res.data)
   }
  });

$postXml = $GLOBALS["HTTP_RAW_POST_DATA"]; //接收微信参数 
// 接受不到参数可以使用file_get_contents("php://input"); PHP高版本中$GLOBALS好像已经被废弃了
if (empty($postXml)) {
  return false;
}
 
//将xml格式转换成数组
function xmlToArray($xml) {
  //禁止引用外部xml实体 
  libxml_disable_entity_loader(true);
  $xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
  $val = json_decode(json_encode($xmlstring), true);
  return $val;
}

$attr = xmlToArray($postXml);
$total_fee = $attr['total_fee'];
$open_id = $attr['openid'];
$out_trade_no = $attr['out_trade_no'];
$time = $attr['time_end'];