首先给大家看一看这个表格：
根据微信高级红包接口，开发php版本的api接口，现在进行主要代码分析。
红包接口调用请求代码，所有请求参数为必填参数与文档对应：
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);//红包収放总人数 $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; }
获取随机字符串方法：
/** * 生成随机数 */ public function great_rand(){ $str = '1234567890abcdefghijklmnopqrstuvwxyz'; for($i=0;$i
签名算法：
/**例如：appid： wxd111665abv58f4fmch_id： 10000100device_info： 1000body： testnonce_str： ibuaivckdprxkhja第一步：对参数按照 key=value 的格式，并按照参数名 ascii 字典序排序如下：stringa=appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_id=10000100&nonce_str=ibuaivckdprxkhja;第二步：拼接支付密钥：stringsigntemp=stringa&key=192006250b4c09247ec02edce69f6a2dsign=md5(stringsigntemp).touppercase()=9a0a8659f005d6984697e2ca0a9cf3b7*/protected function get_sign(){ define('partnerkey',qsrxxxxxxxxxxxxxxxxxxxxx); try { if (null == partnerkey || == partnerkey ) {throw new sdkruntimeexception(密钥不能为空！ .
); } if($this->check_sign_parameters() == false) { //检查生成签名参数throw new sdkruntimeexception(生成签名参数缺失！ .
); } $commonutil = new commonutil(); ksort($this->parameters); $unsignparastring = $commonutil->formatqueryparamap($this->parameters, false); $md5signutil = new md5signutil(); return $md5signutil->sign($unsignparastring,$commonutil->trimstring(partnerkey)); }catch (sdkruntimeexception $e) { die($e->errormessage()); }}
curl请求以及发送证书：
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; }}
入口文件：