类库代码 wechatH5Pay.php
<?php //use Flight; /** * 微信支付服务器端下单 * 微信APP支付文档地址: https://pay.weixin.qq.com/wiki/doc/api/app.php?chapter=8_6 * 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 wechatAppPay { //接口API URL前缀 const API_URL_PREFIX = \'https://api.mch.weixin.qq.com\'; //下单地址URL const UNIFIEDORDER_URL = "/pay/unifiedorder"; //查询订单URL const ORDERQUERY_URL = "/pay/orderquery"; //关闭订单URL const CLOSEORDER_URL = "/pay/closeorder"; //公众账号ID private $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IP private $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($ch,CURLOPT_SSL_VERIFYHOST,2); //设置header curl_setopt($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]; } } }
调用实例wxh5.php
<?php namespace weixinpayApp; include \'wechatH5Pay.php\'; class wxh5{ //$data 金额和订单号 public function wxh5Request($data){ $appid = \'wxdf************\'; $mch_id = \'*********\';//商户号 $key = \'32位申请时自己设置的\';//商户key $notify_url = "https://www.gujia.la/wxnativepay";//回调地址 $wechatAppPay = new \wechatAppPay($appid, $mch_id, $notify_url, $key); $params[\'body\'] = \'估价啦\'; //商品描述 $params[\'out_trade_no\'] = $data[\'oid\']; //自定义的订单号 $params[\'total_fee\'] = \'1\'; //订单金额 只能为整数 单位为分 $params[\'trade_type\'] = \'MWEB\'; //交易类型 JSAPI | NATIVE | APP | WAP $params[\'scene_info\'] = \'{"h5_info": {"type":"Wap","wap_url": "https://www.diugou.com","wap_name": "估价啦"}}\'; $result = $wechatAppPay->unifiedOrder( $params ); $url = $result[\'mweb_url\'].\'&redirect_url=https%3A%2F%2Fwww.gujia.la \';//redirect_url 是支付完成后返回的页面 return $url; } }