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微信支付基于PHP

PHP 微信
2023-04-18 14:53:21 时间

//微信JSAPI支付

前端页面wx.html

<html>
<head>
   <meta http-equiv="content-type" content="text/html;charset=utf-8"/>
   <meta name="viewport" content="width=device-width, initial-scale=1"/>
   <title>微信支付样例-支付</title>
   <script src="https://static.oschina.net/new-osc/js/utils/jquery.min.js"></script>
   
   <script type="text/javascript">
        function onBridgeReady(){
            var order_id = 7;
            $.ajax({
                'type':'get',
                'url':'http://wx.owenzhang.com/Pay',
                'data':{            //默认自动添加callback参数
                    'order_id':order_id,
                   'token':'27_G7oqz8ofmbn6q7aSsmpkGeVbQ'  //不安全，请定期刷新token，建议进行文件压缩
                },
                'dataType':'json',
                'success':function(json){
                    var json = json.data;
                    //微信JSAPI支付
                    WeixinJSBridge.invoke(
                        'getBrandWCPayRequest', {
                            "appId":json.appId,     //公众号id，由商户传入
                            "timeStamp":json.timeStamp, //时间戳，自1970年以来的秒数
                            "nonceStr":json.nonceStr, //随机串
                            "package":json.package,//订单详情扩展字符串
                            "signType":json.signType, //微信签名方式：
                            "paySign":json.paySign //微信签名
                        },
                        function(res){
                            if(res.err_msg == "get_brand_wcpay_request:ok" ){
                                // 使用以上方式判断前端返回,微信团队郑重提示：
                                //res.err_msg将在用户支付成功后返回ok，但并不保证它绝对可靠。
                                window.location.href = 'http://owenwx.ygkj8.cn/app/index.php?i=1&c=entry&a=wxapp&m=hotel_jm&do=paysucceed&order_id='+order_id;
                            }
                            
                        });
                },
                'error': function(XMLHttpRequest, textStatus, errorThrown) {
                    alert("请求失败：" + XMLHttpRequest.status);
                }
            });
        }
   </script>
   
</head>
<body>
<br/>
<font color="#9ACD32"><b>该笔订单支付金额为<span style="color:#f00;font-size:50px">1分</span>钱</b></font><br/><br/>
<div align="center">
   <button style="width:210px; height:50px; border-radius: 15px;background-color:#FE6714; border:0px #FE6714 solid; cursor: pointer;  color:white;  font-size:16px;" type="button" onclick="onBridgeReady()" >立即支付</button>
</div>
</body>
</html>
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接口方法

/**
		 * 微信支付
		 * @access public
		 * @param null
		 * @return array 返回类型
		 * {
		"errno": 0,
		"message": "",
		"data": {
		"appId": "wx412359e77e1b1",
		"timeStamp": "1572319025",
		"nonceStr": "zg237y9123wlx83opu3muusu03wpt",
		"package": "prepay_id=wx29123ec43a85f1123462900",
		"signType": "MD5",
		"paySign": "78C5D9E6123D1F7F948A152D4"
		}
		}
		 */
		public function doPagePay()
		{			
			$good_name = '商品名称';			
			$appid = $res["appid"];//公众号appid
			$openid = $this->openid;//用户微信openid
			$mch_id = $res["mchid"];//公众号支付商户号
			$key = $res["wxkey"];//公众号支付Api密钥
			$out_trade_no = $mch_id . time();//支付商户订单号
			$total_fee = $_GPC["money"];
			$total_fee = 0.01;
			$openid = 'onn6Bwf62aiyafBKQsPc072FIHrw';
			if (empty($total_fee)||!$good_name||!$total_fee) {
				return $this->result(10008, '参数错误', '');
			} else {
				$total_fee = floatval($total_fee * 100);
			}		
			
			$weixinpay = new WeixinPay($appid, $openid, $mch_id, $key, $out_trade_no, $good_name, $total_fee);
			$return = $weixinpay->pay();
			return $this->result(0, '', $return);
		}

		
		/**
		 * 支付成功回调,微信查询订单
		 *
		 * @access public
		 * @param null
		 * @return array 返回类型
		 */
		public function doPagePaysucceed(){
			
			$appid = $res["appid"];//公众号appid
			$openid = $this->openid;//用户微信openid
			$mch_id = $res["mchid"];//公众号支付商户号
			$key = $res["wxkey"];//公众号支付Api密钥
			
			$weixinpay = new WeixinPay($appid, $openid, $mch_id, $key, $out_trade_no, '', '');
			$orderquery = $weixinpay->wxOrderQuery();
			
			if ($orderquery['return_code']=='SUCCESS'){
				return $this->result(0, '支付成功', '');
			}else{
				return $this->result(0, '该订单支付失败', '');
			}
		}
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父类wxpay.php

/**
	 * 微信支付
	 * 微信支付：JSAPI支付，订单查询，
	 * @author      owenzhang
	 * @version     1.0 
	 */
<?php
class WeixinPay
{
	protected $appid;
	protected $mch_id;
	protected $key;
	protected $openid;
	protected $out_trade_no;
	protected $body;
	protected $total_fee;
	function __construct($appid, $openid, $mch_id, $key, $out_trade_no, $body, $total_fee)
	{
		
		$this->appid = $appid;
		$this->openid = $openid;
		$this->mch_id = $mch_id;
		$this->key = $key;
		$this->out_trade_no = $out_trade_no;
		$this->body = $body;
		$this->total_fee = $total_fee;
		
	}
	//微信JSAPI支付
	public function pay()
	{
		$return = $this->weixinapp();
		return $return;
	}
	//微信支付查询订单
	public function wxOrderQuery()
	{
		$return = $this->orderquery();
		return $return;
	}
	private function unifiedorder()
	{
		$url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
		$parameters = array("appid" => $this->appid, "mch_id" => $this->mch_id, "nonce_str" => $this->createNoncestr(), "body" => $this->body, "out_trade_no" => $this->out_trade_no, "total_fee" => $this->total_fee, "spbill_create_ip" => "192.168.0.161", "notify_url" => "http://www.weixin.qq.com/wxpay/pay.php", "openid" => $this->openid, "trade_type" => "JSAPI");
		$parameters["sign"] = $this->getSign($parameters);
		$xmlData = $this->arrayToXml($parameters);
		$return = $this->xmlToArray($this->postXmlCurl($xmlData, $url, 60));
		return $return;
	}
	
	private function orderquery()
	{
		$url = "https://api.mch.weixin.qq.com/pay/orderquery";
		$parameters = array("appid" => $this->appid, "mch_id" => $this->mch_id, "out_trade_no" => $this->out_trade_no, "nonce_str" => $this->createNoncestr(), "sign_type" => "MD5");
		$parameters["sign"] = $this->getSign($parameters);
		$xmlData = $this->arrayToXml($parameters);
		$return = $this->xmlToArray($this->postXmlCurl($xmlData, $url, 60));
		return $return;
	}
	private static function postXmlCurl($xml, $url, $second = 30)
	{
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_TIMEOUT, $second);
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
		curl_setopt($ch, CURLOPT_HEADER, FALSE);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
		curl_setopt($ch, CURLOPT_POST, TRUE);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
		curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
		curl_setopt($ch, CURLOPT_TIMEOUT, 40);
		set_time_limit(0);
		$data = curl_exec($ch);
		if ($data) {
			curl_close($ch);
			return $data;
		} else {
			$error = curl_errno($ch);
			curl_close($ch);
			throw new WxPayException("curl出错，错误码:{$error}");
		}
	}
	private function arrayToXml($arr)
	{
		$xml = "<root>";
		foreach ($arr as $key => $val) {
			if (is_array($val)) {
				$xml .= "<" . $key . ">" . arrayToXml($val) . "</" . $key . ">";
			} else {
				$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
			}
		}
		$xml .= "</root>";
		return $xml;
	}
	private function xmlToArray($xml)
	{
		libxml_disable_entity_loader(true);
		$xmlstring = simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA);
		$val = json_decode(json_encode($xmlstring), true);
		return $val;
	}
	private function weixinapp()
	{
		$unifiedorder = $this->unifiedorder();
		$parameters = array("appId" => $this->appid, "timeStamp" => '' . time() . '', "nonceStr" => $this->createNoncestr(), "package" => "prepay_id=" . $unifiedorder["prepay_id"], "signType" => "MD5");
		$parameters["paySign"] = $this->getSign($parameters);
		return $parameters;
	}
	private function createNoncestr($length = 32)
	{
		$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
		$str = '';
		$i = 0;
		while ($i < $length) {
			$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
			$i++;
		}
		return $str;
	}
	private function getSign($Obj)
	{
		foreach ($Obj as $k => $v) {
			$Parameters[$k] = $v;
		}
		ksort($Parameters);
		$String = $this->formatBizQueryParaMap($Parameters, false);
		$String = $String . "&key=" . $this->key;
		$String = md5($String);
		$result_ = strtoupper($String);
		return $result_;
	}
	private function formatBizQueryParaMap($paraMap, $urlencode)
	{
		$buff = '';
		ksort($paraMap);
		foreach ($paraMap as $k => $v) {
			if ($urlencode) {
				$v = urlencode($v);
			}
			$buff .= $k . "=" . $v . "&";
		}
		$reqPar = '';
		if (strlen($buff) > 0) {
			$reqPar = substr($buff, 0, strlen($buff) - 1);
		}
		return $reqPar;
	}
}
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