微信支付--wxPay(服务端)

引入该文件 WechatAppPay.php
下载地址： http://pan.baidu.com/s/1qXMnLhy

以下代码是统一下单获取预支付订单号

具体代码如下

<?php
/**
 * Created by PhpStorm.
 * User: 喵小猫
 * Date: 2017/3/31
 * Time: 11:28
 */
namespace PaymentController;
use CommonControllerFrontbaseController;

class WxpayController extends FrontbaseController{
	//api--获取的订单号
	public function wechatPay(){
		require_once C(EXTEND_PATH)."/Wxpay/WechatAppPay.php";
		$appid = "wx************";
		$mch_id = "**商户id**";
		$notify_url = "http://**********/application/Payment/notify.php";
		$key = "*******商户秘钥*********";

		$description = I("description");//商品描述
		$wxPrice = I("wxPrice"); //订单金额 只能为整数 单位为分
		$tradeNo = I("tradeNo"); //自定义的订单号
		//1.统一下单方法
		$wechatAppPay = new WechatAppPay($appid, $mch_id, $notify_url, $key);
		$params["body"] = $description; //商品描述
		$params["out_trade_no"] = $tradeNo; //自定义的订单号
		$params["total_fee"] = $wxPrice; //订单金额 只能为整数 单位为分
		$params["trade_type"] = "APP"; //交易类型 JSAPI | NATIVE | APP | WAP
		$result = $wechatAppPay->unifiedOrder( $params );

//		print_r($result); // result中就是返回的各种信息信息，成功的情况下也包含很重要的prepay_id
		//2.创建APP端预支付参数
		/** @var TYPE_NAME $result */
		$data = @$wechatAppPay->getAppPayParams( $result["prepay_id"] );
		// 根据上行取得的支付参数请求支付即可
		if($data){
			$arr["status"] = 1;
			$arr["appid"] = $data["appid"]; //应用APPID
			$arr["partnerid"] = $data["partnerid"]; //商户号
			$arr["prepayid"] = $data["prepayid"]; //预支付交易会话标识
			$arr["package"] = $data["package"]; //交易类型
			$arr["noncestr"] = $data["noncestr"]; //微信返回的随机字符串
			$arr["timestamp"] = $data["timestamp"]; //时间戳
			$arr["sign"] = $data["sign"]; //微信返回的签名
		}else{
			$arr["status"] = 0;
			$arr["msg"] = "获取微信返回信息失败";
		}
		$this->output($arr);
	}
}

回调部分

<?php
/**
 * Created by PhpStorm.
 * User: 喵小猫
 * Date: 2017/5/18
 * Time: 14:46
 */
//include_once ("./log_.php");
//$log = new log_();
//$log_name="../../data/runtime/Logs/notify_url.log";//log文件路径

$xml = file_get_contents("php://input");
//$log->log_result($log_name,"【xml】:
".json_encode($xml)."
");
$arr = json_decode(json_encode(simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA)), true);
//$log->log_result($log_name,"【arr】:
".json_encode($arr)."
");

$post = array();
$post["appid"]			= $arr["appid"];
$post["mch_id"]			= $arr["mch_id"];
$post["nonce_str"]		= $arr["nonce_str"];
$post["out_trade_no"]	= $arr["out_trade_no"];
$post["total_fee"]		= $arr["total_fee"];
$post["notify_url"]		= $arr["notify_url"];
$post["trade_type"]		= $arr["trade_type"];
$post["openid"]			= $arr["openid"];
$post["bank_type"]		= $arr["bank_type"];
$post["cash_fee"]		= $arr["cash_fee"];
$post["fee_type"]		= $arr["fee_type"];
$post["is_subscribe"]	= $arr["is_subscribe"];
$post["result_code"]	= $arr["result_code"];
$post["return_code"]	= $arr["return_code"];
$post["time_end"]		= $arr["time_end"];
$post["transaction_id"]	= $arr["transaction_id"];

//$log->log_result($log_name,"【post】:
".json_encode($post)."
");
//排序
ksort($post);
//生成sign
$str 	= urldecode(http_build_query($post))."&key=lituoquanjingrongfuwupingtai1990";
$sign 	= strtoupper(md5($str));

//$log->log_result($log_name,"【sign】:
".$sign."
");

if($sign === $arr["sign"]){
//	$log->log_result($log_name,"【验证】:
".验证成功."
");
	//此处处理业务逻辑

//	$log->log_result($log_name,"【sql】:
".$sql."
");
}

$xml = "<xml>";
foreach ($post as $key=>$val){
	if(is_array($val)){
		$xml.="<".$key.">".arrayToXml($val)."</".$key.">";
	}else{
		$xml.="<".$key.">".$val."</".$key.">";
	}
}
$xml.="</xml>";
return $xml;

回调中用到的log类

<?php
/**
 * Created by PhpStorm.
 * User: 喵小猫
 * Date: 2017/5/19
 * Time: 10:28
 */
class Log_
{
	// 打印log
	function  log_result($file,$word)
	{
		$fp = fopen($file,"a");
		flock($fp, LOCK_EX) ;
		fwrite($fp,"执行日期：".strftime("%Y-%m-%d-%H：%M：%S",time())."
".$word."

");
		flock($fp, LOCK_UN);
		fclose($fp);
	}
}