PHP微信红包API接口

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;$i<30;$i++){  $j=rand(0,35);  $t1 .= $str[$j]; } return $t1; }

 签名算法：