PHP微信H5支付Demo

<?php/*** 微信支付服务器端下单* 使用示例*  构造方法参数*      'appid'     =>  //填写微信分配的公众账号ID*      'mch_id'    =>  //填写微信支付分配的商户号*      'notify_url'=>  //填写微信支付结果回调地址*      'key'       =>  //填写微信商户支付密钥*  );*  统一下单方法*  $WechatAppPay = new wechatAppPay($options);*  $params['body'] = '商品描述';                   //商品描述*  $params['out_trade_no'] = '1217752501201407';   //自定义的订单号，不能重复*  $params['total_fee'] = '100';                   //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*  $wechatAppPay->unifiedOrder( $params );*/
class WxH5Pay
{// 接口API URL前缀const API_URL_PREFIX = 'https://api.mch.weixin.qq.com';// 下单地址URLconst UNIFIEDORDER_URL = "/pay/unifiedorder";// 查询订单URLconst ORDERQUERY_URL = "/pay/orderquery";// 关闭订单URLconst CLOSEORDER_URL = "/pay/closeorder";// 公众账号IDprivate $appid;// 商户号private $mch_id;// 随机字符串private $nonce_str;// 签名private $sign;// 商品描述private $body;// 商户订单号private $out_trade_no;// 支付总金额private $total_fee;// 终端IPprivate $spbill_create_ip;// 支付结果回调通知地址private $notify_url;// 交易类型private $trade_type;// 支付密钥private $key;// 证书路径private $SSLCERT_PATH;private $SSLKEY_PATH;// 所有参数private $params = array();public function __construct($appid, $mch_id, $notify_url, $key){$this->appid = $appid;$this->mch_id = $mch_id;$this->notify_url = $notify_url;$this->key = $key;}/*** 下单方法* @param   $params 下单参数*/public function unifiedOrder($params){$this->body = $params['body'];$this->out_trade_no = $params['out_trade_no'];$this->total_fee = $params['total_fee'];$this->trade_type = $params['trade_type'];$this->scene_info = $params['scene_info'];$this->nonce_str = $this->genRandomString();$this->spbill_create_ip = $_SERVER['REMOTE_ADDR'];$this->params['appid'] = $this->appid;$this->params['mch_id'] = $this->mch_id;$this->params['nonce_str'] = $this->nonce_str;$this->params['body'] = $this->body;$this->params['out_trade_no'] = $this->out_trade_no;$this->params['total_fee'] = $this->total_fee;$this->params['spbill_create_ip'] = $this->spbill_create_ip;$this->params['notify_url'] = $this->notify_url;$this->params['trade_type'] = $this->trade_type;$this->params['scene_info'] = $this->scene_info;// 获取签名数据$this->sign = $this->MakeSign($this->params);$this->params['sign'] = $this->sign;$xml = $this->data_to_xml($this->params);$response = $this->postXmlCurl($xml, self::API_URL_PREFIX . self::UNIFIEDORDER_URL);if (!$response) {return false;}$result = $this->xml_to_data($response);if (!empty($result['result_code']) && !empty($result['err_code'])) {$result['err_msg'] = $this->error_code($result['err_code']);}return $result;}/*** 查询订单信息* @param $out_trade_no     订单号* @return array*/public function orderQuery($out_trade_no){$this->params['appid'] = $this->appid;$this->params['mch_id'] = $this->mch_id;$this->params['nonce_str'] = $this->genRandomString();$this->params['out_trade_no'] = $out_trade_no;//获取签名数据$this->sign = $this->MakeSign($this->params);$this->params['sign'] = $this->sign;$xml = $this->data_to_xml($this->params);$response = $this->postXmlCurl($xml, self::API_URL_PREFIX . self::ORDERQUERY_URL);if (!$response) {return false;}$result = $this->xml_to_data($response);if (!empty($result['result_code']) && !empty($result['err_code'])) {$result['err_msg'] = $this->error_code($result['err_code']);}return $result;}/*** 关闭订单* @param $out_trade_no     订单号* @return array*/public function closeOrder($out_trade_no){$this->params['appid'] = $this->appid;$this->params['mch_id'] = $this->mch_id;$this->params['nonce_str'] = $this->genRandomString();$this->params['out_trade_no'] = $out_trade_no;//获取签名数据$this->sign = $this->MakeSign($this->params);$this->params['sign'] = $this->sign;$xml = $this->data_to_xml($this->params);$response = $this->postXmlCurl($xml, self::API_URL_PREFIX . self::CLOSEORDER_URL);if (!$response) {return false;}$result = $this->xml_to_data($response);return $result;}/**** 获取支付结果通知数据* return array*/public function getNotifyData(){//获取通知的数据$xml = $GLOBALS['HTTP_RAW_POST_DATA'];//echo 123;die;$data = array();if (empty($xml)) {return false;}$data = $this->xml_to_data($xml);if (!empty($data['return_code'])) {if ($data['return_code'] == 'FAIL') {return false;}}return $data;}/*** 接收通知成功后应答输出XML数据* @param string $xml*/public function replyNotify(){$data['return_code'] = 'SUCCESS';$data['return_msg'] = 'OK';$xml = $this->data_to_xml($data);echo $xml;die();}/*** 生成APP端支付参数* @param  $prepayid   预支付id*/public function getAppPayParams($prepayid){$data['appid'] = $this->appid;$data['partnerid'] = $this->mch_id;$data['prepayid'] = $prepayid;$data['package'] = 'Sign=WXPay';$data['noncestr'] = $this->genRandomString();$data['timestamp'] = time();$data['sign'] = $this->MakeSign($data);return $data;}/*** 生成签名* @return 签名*/public function MakeSign($params){//签名步骤一：按字典序排序数组参数ksort($params);$string = $this->ToUrlParams($params);//签名步骤二：在string后加入KEY$string = $string . "&key=" . $this->key;//签名步骤三：MD5加密$string = md5($string);//签名步骤四：所有字符转为大写$result = strtoupper($string);return $result;}/*** 将参数拼接为url: key=value&key=value* @param   $params* @return  string*/public function ToUrlParams($params){$string = '';if (!empty($params)) {$array = array();foreach ($params as $key => $value) {$array[] = $key . '=' . $value;}$string = implode("&", $array);}return $string;}/*** 输出xml字符* @param   $params     参数名称* return   string      返回组装的xml**/public function data_to_xml($params){if (!is_array($params) || count($params) <= 0) {return false;}$xml = "<xml>";foreach ($params as $key => $val) {if (is_numeric($val)) {$xml .= "<" . $key . ">" . $val . "</" . $key . ">";} else {$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";}}$xml .= "</xml>";return $xml;}/*** 将xml转为array* @param string $xml* return array*/public function xml_to_data($xml){if (!$xml) {return false;}//将XML转为array//禁止引用外部xml实体libxml_disable_entity_loader(true);$data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);return $data;}/*** 获取毫秒级别的时间戳*/private static function getMillisecond(){//获取毫秒的时间戳$time = explode(" ", microtime());$time = $time[1] . ($time[0] * 1000);$time2 = explode(".", $time);$time = $time2[0];return $time;}/*** 产生一个指定长度的随机字符串,并返回给用户* @param type $len 产生字符串的长度* @return string 随机字符串*/private function genRandomString($len = 32){$chars = array("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k","l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v","w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G","H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R","S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2","3", "4", "5", "6", "7", "8", "9");$charsLen = count($chars) - 1;// 将数组打乱shuffle($chars);$output = "";for ($i = 0; $i < $len; $i++) {$output .= $chars[mt_rand(0, $charsLen)];}return $output;}/*** 以post方式提交xml到对应的接口url** @param string $xml 需要post的xml数据* @param string $url url* @param bool $useCert 是否需要证书，默认不需要* @param int $second url执行超时时间，默认30s* @throws WxPayException*/private function postXmlCurl($xml, $url, $useCert = false, $second = 30){$ch = curl_init();//设置超时curl_setopt($ch, CURLOPT_TIMEOUT, $second);curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);//设置headercurl_setopt($ch, CURLOPT_HEADER, FALSE);//要求结果为字符串且输出到屏幕上curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);if ($useCert == true) {//设置证书//使用证书：cert 与 key 分别属于两个.pem文件curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'PEM');//curl_setopt($ch,CURLOPT_SSLCERT, WxPayConfig::SSLCERT_PATH);curl_setopt($ch, CURLOPT_SSLKEYTYPE, 'PEM');//curl_setopt($ch,CURLOPT_SSLKEY, WxPayConfig::SSLKEY_PATH);}//post提交方式curl_setopt($ch, CURLOPT_POST, TRUE);curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);//运行curl$data = curl_exec($ch);//返回结果if ($data) {curl_close($ch);return $data;} else {$error = curl_errno($ch);curl_close($ch);return false;}}/*** 错误代码* @param  $code       服务器输出的错误代码* return string*/public function error_code($code){$errList = array('NOAUTH' => '商户未开通此接口权限','NOTENOUGH' => '用户帐号余额不足','ORDERNOTEXIST' => '订单号不存在','ORDERPAID' => '商户订单已支付，无需重复操作','ORDERCLOSED' => '当前订单已关闭，无法支付','SYSTEMERROR' => '系统错误!系统超时','APPID_NOT_EXIST' => '参数中缺少APPID','MCHID_NOT_EXIST' => '参数中缺少MCHID','APPID_MCHID_NOT_MATCH' => 'appid和mch_id不匹配','LACK_PARAMS' => '缺少必要的请求参数','OUT_TRADE_NO_USED' => '同一笔交易不能多次提交','SIGNERROR' => '参数签名结果不正确','XML_FORMAT_ERROR' => 'XML格式错误','REQUIRE_POST_METHOD' => '未使用post传递参数 ','POST_DATA_EMPTY' => 'post数据不能为空','NOT_UTF8' => '未使用指定编码格式',);if (array_key_exists($code, $errList)) {return $errList[$code];}}
}

<?phprequire_once 'WxH5Pay.php';$_POST['title'] = ' 1 积分';
$_POST['money'] = '1';$appid = '微信支付的appid';
$mch_id = '微信支付的mch_id';
$key = '微信商户API密钥';
$notify_url = 'http://xxxx.cn/api/mypay/callback.php';$wechatAppPay = new WxH5Pay($appid, $mch_id, $notify_url, $key);$params['body'] = '购买' . $_POST['title']; // $params['body'] = '微信H5支付测试';
$params['out_trade_no'] = date('Ymd') . substr(implode(NULL, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 8); // 订单号
$params['total_fee'] = $_POST['money']; // 订单金额 只能为整数 单位为分
$params['trade_type'] = 'MWEB'; // 交易类型 MWEB
$host = "http://xxxx.cn/"; // 来源地址
$name = '微信支付测试订单'; // $name = '微信支付测试订单';
$params['scene_info'] = '{"h5_info": {"type":"Wap","wap_url": ' . $host . ',"wap_name":"' . $name . '"}}';
$result = $wechatAppPay->unifiedOrder($params);if (isset($result['err_msg'])) {return false; // 错误返回信息，看需求定义返回！
}
$url = $result['mweb_url'] . '&redirect_url=' . urlencode($notify_url); // 可以在MWEB_URL后拼接上 redirect_url 参数，来指定回调页面// 跳转此链接拉起微信支付
header("location:" . $url);  // 拉起微信支付链接(并且附上$return_url)
exit;

$notify_url = 'http://xxxx.cn/api/mypay/callback.php'; 的代码:

<?php
require '../../../common.inc.php';
global $db;
$xml = file_get_contents('php://input'); // 监听是否有数据传入
if (!empty($xml)) {// 微信返回信息$data = xml_to_data($xml);if ($data['return_code'] == 'SUCCESS' && $data['result_code'] == 'SUCCESS') {//处理业务逻辑,数据库的操作//在调用查询订单号接口进行订单状态的判断（根据微信订单号查询）//只有trade_state为success才算是真正的支付成功// 更新订单表$res = $db->query("UPDATE `destoon_payment_orders` SET `time_end`='" . date("YmdHis") . "' WHERE `out_trade_no`='" . $data['out_trade_no'] . "'");if ($res) {$credit = $db->get_one("SELECT credit FROM `destoon_credit_list` WHERE `money`='" . $data['total_fee'] / 100 . "'")['credit'];if(!$credit){$credit = ceil($data['total_fee'] / 100 * (100 + ($data['total_fee'] / 100) / 10));if(($data['total_fee'] / 100) > 200){$credit = ceil(($data['total_fee'] / 100) * 120);} else {$credit = ceil($data['total_fee'] / 100) * (100 + ($data['total_fee'] / 100) / 10);}}$userid = $db->get_one("SELECT userid FROM `destoon_payment_orders` WHERE `out_trade_no`='" . $data['out_trade_no'] . "'")['userid'];$user_data = $db->get_one("SELECT userid, username, credit FROM `destoon_member` WHERE `userid`='" . $userid . "'");$balance = "充值" . $data['total_fee'] / 100 . "元， 购买" . $credit . '积分。';$rrr = $db->query("INSERT INTO `destoon_finance_credit` (userid, username, amount, balance, addtime, reason, note, editor)  VALUES ('" . $user_data['userid'] . "', '" . $user_data['username'] . "', '" . $credit . "', '" . ($user_data['credit'] + $credit) . "', '" . time() . "', '" . $balance . "', 'ID:" . $user_data['userid'] . "', 'system')");if ($rrr) {$db->query("UPDATE `destoon_member` SET credit=credit+'" . $credit . "' WHERE `userid`='" . $user_data['userid'] . "'");}}//所有的业务处理完成后，输出success（XML格式）echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';} else {file_put_contents('../error.txt', 'rade_state fail');}
}function xml_to_data($xml)
{if (!$xml) {throw new WxPayException("xml数据异常！");}//将XML转为array//禁止引用外部xml实体libxml_disable_entity_loader(true);$values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);return $values;
}

<!doctype html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport"content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>微信H5支付</title>
</head>
<body>
<input id="zhifu" type="submit" value="支付">
</body>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script><script>$('#zhifu').click(function () {window.location.href = "index.php";})
</script></html>

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