PHP编程：PHP微信红包生成代码分享

PHP实战
<!--?php
/**
 * 发送红包接口
 * Created by PhpStorm.
 * User: ADKi
 * Date: 2016/4/25 0025
 * Time: 15:25
 */
class wechat_packet{
 private $url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack';//请求URL
 private $mch_id;//商户号
 private $weixin_appid;//公众账号appid
 private $send_name;//商户名称
 private $total_num = 1;//发送红包总人数
 private $wishing;//红包祝福语
 private $client_ip;//调用接口的机器Ip地址
 private $act_name;//活动名称
 private $remark;//备注信息
 private $nonce_str;//随机字符串,不长于32位
 private $api_password;
 private $arraytoxml;//数组转xml
 /**
 * 公钥
 */
 private $public_key = "/api/wechat/cert/apiclient_cert.pem";
 /**
 * 私钥
 */
 private $private_key = '/api/wechat/cert/apiclient_key.pem';
 /**
 * ca证书
 */
 private $rootca = 'api/wechat/cert/rootca.pem';
 public function __construct()
 {
 //初始化红包设置信息
 $this--->weixin_appid = C('wap_weixin_appid');
 $this->mch_id = C('wechat_mch_id');
 $this->send_name = C('wechat_send_name');
 $this->wishing = C('wechat_wishing');
 $this->act_name = C('wechat_act_name');
 $this->client_ip = $_SERVER['SERVER_ADDR'];
 $this->remark = C('wechat_remark');
 $this->nonce_str = $this->create_nonce_str(32);
 $this->api_password = C('wechat_api_password');
 $inc_file = BASE_PATH.DS.'api'.DS.'wechat'.DS.'arraytoxml.php';
 if(is_file($inc_file)) {
 require($inc_file);
 }
 $this->arraytoxml = new ArrayToXML();
 }
 
 public function send_post($mch_billno,$re_openid,$total_amount){
 $sign = $this->create_sign($mch_billno,$re_openid,$total_amount);
 $send_array = array(
 'nonce_str' => $this->nonce_str,
 'mch_billno' => $mch_billno,
 'mch_id' => $this->mch_id,
 'wxappid' => $this->weixin_appid,
 'send_name' => $this->send_name,
 're_openid' => $re_openid,
 'total_amount' => $total_amount,
 'total_num' => $this->total_num,
 'wishing' => $this->wishing,
 'client_ip' => $this->client_ip,
 'act_name' => $this->act_name,
 'remark' => $this->remark,
 'sign' => $sign,
 );
 $send_xml = $this->arraytoxml->toXml($send_array,'');
 $data = $this->curl_post_ssl($this->url, $send_xml);
 $data = $this->xmlToArray($data);
 file_put_contents('adki',var_export($data,true),FILE_APPEND);
 }
 /*
 请确保您的libcurl版本是否支持双向认证,版本高于7.20.1
 */
 private function curl_post_ssl($url, $vars, $second=30,$aHeader=array()){
 $ch = curl_init();
 //超时时间
 curl_setopt($ch,CURLOPT_TIMEOUT,$second);
 curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
 //这里设置代理,如果有的话
 //curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98');
 //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
 curl_setopt($ch,CURLOPT_URL,$url);
 curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
 curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
 //以下两种方式需选择一种
 //第一种方法,cert 与 key 分别属于两个.pem文件
 //默认格式为PEM,可以注释
 curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
 curl_setopt($ch,CURLOPT_SSLCERT,getcwd().$this->public_key);
 //默认格式为PEM,可以注释
 curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
 curl_setopt($ch,CURLOPT_SSLKEY,getcwd().$this->private_key);
 //ca证书
 curl_setopt($ch,CURLOPT_CAINFO,$this->rootca);
 //第二种方式,两个文件合成一个.pem文件
 //curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem');
 if( count($aHeader) >= 1 ){
 curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
 }
 curl_setopt($ch,CURLOPT_POST, 1);
 curl_setopt($ch,CURLOPT_POSTFIELDS,$vars);
 $data = curl_exec($ch);
 if($data){
 curl_close($ch);
 return $data;
 }
 else {
 $error = curl_errno($ch);
 echo "call faild, errorCode:$error\n\n\n\n";
 curl_close($ch);
 return false;
 }
 }
 //生成签名
 private function create_sign($mch_billno,$re_openid,$total_amount){
 $string_array = array(
 'act_name' => $this->act_name,
 'client_ip' => $this->client_ip,
 'mch_billno' => $mch_billno,
 'mch_id' => $this->mch_id,
 'nonce_str' => $this->nonce_str,
 're_openid' => $re_openid,
 'remark' => $this->remark,
 'send_name' => $this->send_name,
 'total_amount' => $total_amount,
 'total_num' => $this->total_num,
 'wishing' => $this->wishing,
 'wxappid' => $this->weixin_appid,
 );
 foreach ($string_array as $key => $value){
 if(!empty($value)){
 $stringA .= "$key=$value";
 if($key != 'wxappid'){
  $stringA .= '&';
 }
 }
 }
 //转成UTF-8
 $stringA = $this->gbkToUtf8($stringA);
 $stringSignTemp="$stringA&key=$this->api_password";
 $sign = MD5($stringSignTemp);
 $sign = strtoupper($sign);
 return $sign;
 }
 //生成随机字符串
 private function create_nonce_str($length){
 $str = null;
 $strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
 $max = strlen($strPol)-1;
 for($i=0;$i<$length;$i++){
 $str.=$strPol[rand(0,$max)];//rand($min,$max)生成介于min和max两个数之间的一个随机整数
 }
 return $str;
 }
 /**
 *自动判断把gbk或gb2312编码的字符串转为utf8
 *能自动判断输入字符串的编码类,如果本身是utf-8就不用转换,否则就转换为utf-8的字符串
 *支持的字符编码类型是：utf-8,gbk,gb2312
 *@$str:string 字符串
 */
 private function gbkToUtf8($str){
 $charset = mb_detect_encoding($str,array('ASCII','UTF-8','GBK','GB2312'));
 $charset = strtolower($charset);
 if("utf-8" != $charset){
 $str = iconv('UTF-8',$charset,$str);
 }
 return $str;
 }
 private function xmlToArray($postStr){
 $msg = array();
 $msg = (array)simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
 return $msg;
 }
}

PHP实战
<!--?php
/**
 * Created by PhpStorm.
 * User: ADKi
 * Date: 2016/4/26 0026
 * Time: 12:19
 */
class ArrayToXML
{
 public function toXml($data){
 $xml = '<xml-->';
 foreach ($data as $key => $value){
 if (is_numeric($value)){
 $xml .= "<".$key.">".$value."<!--".$key."-->";
 }else{
 $xml .= "<".$key."><!--[CDATA[".$value."]]--><!--".$key."-->";
 }
 }
 $xml .= '';
 return $xml;
 }
}

PHP实战
<?php
 /********************************************************
 * @author Kyler You <QQ:2444756311>
 * @link http://mp.weixin.qq.com/wiki/home/index.html
 * @version 2.0.1
 * @uses $wxApi = new WxApi();
 * @package 微信API接口 陆续会继续进行更新
 ********************************************************/
 
 class WxApi {
 const appId  = "";
 const appSecret = ""; 
 const mchid  = ""; //商户号
 const privatekey = ""; //私钥
 public $parameters = array();
 
 public function __construct(){
 
 }
 
 /****************************************************
  * 微信提交API方法,返回微信指定JSON
  ****************************************************/
 
 public function wxHttpsRequest($url,$data = null){
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, $url);
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
  curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
  if (!empty($data)){
   curl_setopt($curl, CURLOPT_POST, 1);
   curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
  }
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  $output = curl_exec($curl);
  curl_close($curl);
  return $output;
 }
 
 /****************************************************
  * 微信带证书提交数据 - 微信红包使用
  ****************************************************/
 
 public function wxHttpsRequestPem($url, $vars, $second=30,$aHeader=array()){
  $ch = curl_init();
  //超时时间
  curl_setopt($ch,CURLOPT_TIMEOUT,$second);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
  //这里设置代理,如果有的话
  //curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98');
  //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
  curl_setopt($ch,CURLOPT_URL,$url);
  curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
  curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
 
  //以下两种方式需选择一种
 
  //第一种方法,cert 与 key 分别属于两个.pem文件
  //默认格式为PEM,可以注释
  curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
  curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/apiclient_cert.pem');
  //默认格式为PEM,可以注释
  curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
  curl_setopt($ch,CURLOPT_SSLKEY,getcwd().'/apiclient_key.pem');
 
  curl_setopt($ch,CURLOPT_CAINFO,'PEM');
  curl_setopt($ch,CURLOPT_CAINFO,getcwd().'/rootca.pem');
 
  //第二种方式,两个文件合成一个.pem文件
  //curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem');
 
  if( count($aHeader) >= 1 ){
   curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
  }
 
  curl_setopt($ch,CURLOPT_POST, 1);
  curl_setopt($ch,CURLOPT_POSTFIELDS,$vars);
  $data = curl_exec($ch);
  if($data){
   curl_close($ch);
   return $data;
  }
  else { 
   $error = curl_errno($ch);
   echo "call faild, errorCode:$error\n"; 
   curl_close($ch);
   return false;
  }
 }
 
 /****************************************************
  * 微信获取AccessToken 返回指定微信公众号的at信息
  ****************************************************/
 
 public function wxAccessToken($appId = NULL , $appSecret = NULL){
  $appId  = is_null($appId) ? self::appId : $appId;
  $appSecret = is_null($appSecret) ? self::appSecret : $appSecret;
  //echo $appId,$appSecret;
  $url  = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appId."&secret=".$appSecret;
  $result  = $this->wxHttpsRequest($url);
  //print_r($result);
  $jsoninfo = json_decode($result, true);
  $access_token = $jsoninfo["access_token"];
  return $access_token;
 }
 
 /****************************************************
  * 微信通过OPENID获取用户信息,返回数组
  ****************************************************/
 
 public function wxGetUser($openId){
  $wxAccessToken = $this->wxAccessToken();
  $url  = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$wxAccessToken."&openid=".$openId."&lang=zh_CN";
  $result  = $this->wxHttpsRequest($url);
  $jsoninfo = json_decode($result, true);
  return $jsoninfo;
 }
 
 /****************************************************
  * 微信通过指定模板信息发送给指定用户,发送完成后返回指定JSON数据
  ****************************************************/
 
 public function wxSendTemplate($jsonData){
  $wxAccessToken = $this->wxAccessToken();
  $url  = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=".$wxAccessToken;
  $result  = $this->wxHttpsRequest($url,$jsonData);
  return $result;
 }
 
 /****************************************************
  * 发送自定义的模板消息
  ****************************************************/
 
 public function wxSetSend($touser, $template_id, $url, $data, $topcolor = '#7B68EE'){
  $template = array(
   'touser' => $touser,
   'template_id' => $template_id,
   'url' => $url,
   'topcolor' => $topcolor,
   'data' => $data
  );
  $jsonData = json_encode($template);
  $result = $this->wxSendTemplate($jsonData);
  return $result;
 }
 
 /****************************************************
  * 微信设置OAUTH跳转URL,返回字符串信息 - SCOPE = snsapi_base //验证时不返回确认页面,只能获取OPENID
  ****************************************************/
 
 public function wxOauthBase($redirectUrl,$state = "",$appId = NULL){
  $appId  = is_null($appId) ? self::appId : $appId;
  $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appId."&redirect_uri=".$redirectUrl."&response_type=code&scope=snsapi_base&state=".$state."#wechat_redirect";
  return $url;
 }
 
 /****************************************************
  * 微信设置OAUTH跳转URL,返回字符串信息 - SCOPE = snsapi_userinfo //获取用户完整信息
  ****************************************************/
 
 public function wxOauthUserinfo($redirectUrl,$state = "",$appId = NULL){
  $appId  = is_null($appId) ? self::appId : $appId;
  $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appId."&redirect_uri=".$redirectUrl."&response_type=code&scope=snsapi_userinfo&state=".$state."#wechat_redirect";
  return $url;
 }
 
 /****************************************************
  * 微信OAUTH跳转指定URL
  ****************************************************/
 
 public function wxHeader($url){
  header("location:".$url);
 }
 
 /****************************************************
  * 微信通过OAUTH返回页面中获取AT信息
  ****************************************************/
 
 public function wxOauthAccessToken($code,$appId = NULL , $appSecret = NULL){
  $appId  = is_null($appId) ? self::appId : $appId;
  $appSecret = is_null($appSecret) ? self::appSecret : $appSecret;
  $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$appId."&secret=".$appSecret."&code=".$code."&grant_type=authorization_code";
  $result  = $this->wxHttpsRequest($url);
  //print_r($result);
  $jsoninfo = json_decode($result, true);
  //$access_token = $jsoninfo["access_token"];
  return $jsoninfo;  
 }
 
 /****************************************************
  * 微信通过OAUTH的Access_Token的信息获取当前用户信息 // 只执行在snsapi_userinfo模式运行
  ****************************************************/
 
 public function wxOauthUser($OauthAT,$openId){
  $url  = "https://api.weixin.qq.com/sns/userinfo?access_token=".$OauthAT."&openid=".$openId."&lang=zh_CN";
  $result  = $this->wxHttpsRequest($url);
  $jsoninfo = json_decode($result, true);
  return $jsoninfo;  
 }
  
 /*****************************************************
  * 生成随机字符串 - 最长为32位字符串
  *****************************************************/
 public function wxNonceStr($length = 16, $type = FALSE) {
  $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  $str = "";
  for ($i = 0; $i < $length; $i++) {
  $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
  }
  if($type == TRUE){
  return strtoupper(md5(time() . $str));
  }
  else {
  return $str;
  }
 }
  
 /*******************************************************
  * 微信商户订单号 - 最长28位字符串
  *******************************************************/
  
 public function wxMchBillno($mchid = NULL) {
  if(is_null($mchid)){
  if(self::mchid == "" || is_null(self::mchid)){
   $mchid = time();
  }
  else{
   $mchid = self::mchid;
  }
  }
  else{
  $mchid = substr(addslashes($mchid),0,10);
  }
  return date("Ymd",time()).time().$mchid;
 }
  
 /*******************************************************
  * 微信格式化数组变成参数格式 - 支持url加密
  *******************************************************/ 
  
 public function wxSetParam($parameters){
  if(is_array($parameters) && !empty($parameters)){
  $this->parameters = $parameters;
  return $this->parameters;
  }
  else{
  return array();
  }
 }
  
 /*******************************************************
  * 微信格式化数组变成参数格式 - 支持url加密
  *******************************************************/
  
 public function wxFormatArray($parameters = NULL, $urlencode = FALSE){
  if(is_null($parameters)){
  $parameters = $this->parameters;
  }
  $restr = "";//初始化空
  ksort($parameters);//排序参数
  foreach ($parameters as $k => $v){//循环定制参数
  if (null != $v && "null" != $v && "sign" != $k) {
   if($urlencode){//如果参数需要增加URL加密就增加,不需要则不需要
   $v = urlencode($v);
   }
   $restr .= $k . "=" . $v . "&";//返回完整字符串
  }
  }
  if (strlen($restr) > 0) {//如果存在数据则将最后“&”删除
  $restr = substr($restr, 0, strlen($restr)-1);
  }
  return $restr;//返回字符串
 }
  
 /*******************************************************
  * 微信MD5签名生成器 - 需要将参数数组转化成为字符串[wxFormatArray方法]
  *******************************************************/
 public function wxMd5Sign($content, $privatekey){
 try {
  if (is_null($key)) {
   throw new Exception("财付通签名key不能为空!");
  }
  if (is_null($content)) {
   throw new Exception("财付通签名内容不能为空");
  }
  $signStr = $content . "&key=" . $key;
  return strtoupper(md5($signStr));
  }
  catch (Exception $e)
  {
  die($e->getMessage());
  }
 }
  
 /*******************************************************
  * 微信Sha1签名生成器 - 需要将参数数组转化成为字符串[wxFormatArray方法]
  *******************************************************/
 public function wxSha1Sign($content, $privatekey){
 try {
  if (is_null($key)) {
   throw new Exception("财付通签名key不能为空!");
  }
  if (is_null($content)) {
   throw new Exception("财付通签名内容不能为空");
  }
  $signStr = $content . "&key=" . $key;
  return strtoupper(sha1($signStr));
  }
  catch (Exception $e)
  {
  die($e->getMessage());
  }
 }
 
 /*******************************************************
  * 将数组解析XML - 微信红包接口
  *******************************************************/
  
 public function wxArrayToXml($parameters = NULL){
  if(is_null($parameters)){
  $parameters = $this->parameters;
  }
  
  if(!is_array($parameters) || empty($parameters)){
  die("参数不为数组无法解析");
  }
  
  $xml = "<xml>";
  foreach ($arr as $key=>$val)
  {
  if (is_numeric($val))
  {
   $xml.="<".$key.">".$val."</".$key.">"; 
  }
  else
   $xml.="<".$key."><![CDATA[".$val."]]></".$key.">"; 
  }
  $xml.="</xml>";
  return $xml; 
 }
  
 }

PHP实战
class Wxapi {
 private $app_id = 'wxXXXXXXXXXXXX'; //公众账号appid,首先申请与之配套的公众账号
 private $app_secret = 'XXXXXXXXXXXXXXXXXXXXXXXX';//公众号secret,用户获取用户授权token
 private $app_mchid = 'XXXXXXXX';//商户号id
 function __construct(){
 //do sth here....
 }
 /**
 * 微信支付
 * @param string $openid 用户openid
 */
 public function pay($re_openid)
 {
 include_once('WxHongBaoHelper.php');
 $commonUtil = new CommonUtil();
 $wxHongBaoHelper = new WxHongBaoHelper();
 $wxHongBaoHelper->setParameter("nonce_str", $this->great_rand());//随机字符串,丌长于 32 位
 $wxHongBaoHelper->setParameter("mch_billno", $this->app_mchid.date('YmdHis').rand(1000, 9999));//订单号
 $wxHongBaoHelper->setParameter("mch_id", $this->app_mchid);//商户号
 $wxHongBaoHelper->setParameter("wxappid", $this->app_id);
 $wxHongBaoHelper->setParameter("nick_name", '红包');//提供方名称
 $wxHongBaoHelper->setParameter("send_name", '红包');//红包发送者名称
 $wxHongBaoHelper->setParameter("re_openid", $re_openid);//相对于医脉互通的openid
 $wxHongBaoHelper->setParameter("total_amount", 100);//付款金额,单位分
 $wxHongBaoHelper->setParameter("min_value", 100);//最小红包金额,单位分
 $wxHongBaoHelper->setParameter("max_value", 100);//最大红包金额,单位分
 $wxHongBaoHelper->setParameter("total_num", 1);//红包Х抛苋耸
 $wxHongBaoHelper->setParameter("wishing", '感谢您参与红包派发活动,祝您新年快乐!');//红包祝福诧
 $wxHongBaoHelper->setParameter("client_ip", '127.0.0.1');//调用接口的机器 Ip 地址
 $wxHongBaoHelper->setParameter("act_name", '红包活动');//活劢名称
 $wxHongBaoHelper->setParameter("remark", '快来抢!');//备注信息
 $postXml = $wxHongBaoHelper->create_hongbao_xml();
 $url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack';
 $responseXml = $wxHongBaoHelper->curl_post_ssl($url, $postXml);
 //用作结果调试输出
 //echo htmlentities($responseXml,ENT_COMPAT,'UTF-8');
 $responseObj = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);
 return $responseObj->return_code;
 }

PHP实战
/**
 * 生成随机数
 */ 
public function great_rand(){
 $str = '1234567890abcdefghijklmnopqrstuvwxyz';
 for($i=0;$i<30;$i++){
 $j=rand(0,35);
 $t1 .= $str[$j];
 }
 return $t1; 
}

PHP实战
/**
例如：
appid： wxd111665abv58f4f
mch_id： 10000100
device_info： 1000
Body： test
nonce_str： ibuaiVcKdpRxkhJA
第一步：对参数按照 key=value 的格式,并按照参数名 ASCII 字典序排序如下：
stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_i
d=10000100&nonce_str=ibuaiVcKdpRxkhJA";
第二步：拼接支付密钥：
stringSignTemp="stringA&key=192006250b4c09247ec02edce69f6a2d"
sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A
9CF3B7"
*/
protected function get_sign(){
 define('PARTNERKEY',"QSRXXXXXXXXXXXXXXXXXXXXX");
 try {
 if (null == PARTNERKEY || "" == PARTNERKEY ) {
 throw new SDKRuntimeException("密钥不能为空!" . "<br>");
 }
 if($this->check_sign_parameters() == false) { //检查生成签名参数
 throw new SDKRuntimeException("生成签名参数缺失!" . "<br>");
 }
 $commonUtil = new CommonUtil();
 ksort($this->parameters);
 $unSignParaString = $commonUtil->formatQueryParaMap($this->parameters, false);
 $md5SignUtil = new MD5SignUtil();
 return $md5SignUtil->sign($unSignParaString,$commonUtil->trimString(PARTNERKEY));
 }catch (SDKRuntimeException $e)
 {
 die($e->errorMessage());
 }
 
}

PHP实战
function curl_post_ssl($url, $vars, $second=30,$aHeader=array())
{
 $ch = curl_init();
 //超时时间
 curl_setopt($ch,CURLOPT_TIMEOUT,$second);
 curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
 //这里设置代理,如果有的话
 curl_setopt($ch,CURLOPT_URL,$url);
 curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
 curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false); 
 //cert 与 key 分别属于两个.pem文件
 //请确保您的libcurl版本是否支持双向认证,版本高于7.20.1
 curl_setopt($ch,CURLOPT_SSLCERT,dirname(__FILE__).DIRECTORY_SEPARATOR.'zhengshu'.DIRECTORY_SEPARATOR.'apiclient_cert.pem');
 curl_setopt($ch,CURLOPT_SSLKEY,dirname(__FILE__).DIRECTORY_SEPARATOR.'zhengshu'.DIRECTORY_SEPARATOR.'apiclient_key.pem');
 curl_setopt($ch,CURLOPT_CAINFO,dirname(__FILE__).DIRECTORY_SEPARATOR.'zhengshu'.DIRECTORY_SEPARATOR.'rootca.pem');
 if( count($aHeader) >= 1 ){
 curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
 }
 curl_setopt($ch,CURLOPT_POST, 1);
 curl_setopt($ch,CURLOPT_POSTFIELDS,$vars);
 $data = curl_exec($ch);
 if($data){
 curl_close($ch);
 return $data;
 }
 else { 
 $error = curl_errno($ch);
 //echo "call faild, errorCode:$error\n"; 
 curl_close($ch);
 return false;
 }
}

PHP实战
@require "pay.php";
//获取用户信息
$get = $_GET['param'];
$code = $_GET['code'];
//判断code是否存在
if($get=='access_token' && !empty($code)){
 $param['param'] = 'access_token';
 $param['code'] = $code;
 $packet = new Packet();
 //获取用户openid信息
 $userinfo = $packet->_route('userinfo',$param);
 if(empty($userinfo['openid'])){
 exit("NOAUTH");
 }
 //调取支付方法
 $packet->_route('wxpacket',array('openid'=>$userinfo['openid']));
}else{
 $packet->_route('userinfo');
}