最近做生日营销，需要微信发红包，特此从网上找了一篇教程
首先你的有个服务号,并且开通了微信支付,我在这就不说怎么去申请和开通了,我是看了微信官方文档后,想看官方文档的朋友可以到下面这个链接
https://pay.weixin.qq.com/wiki/doc/api/tools/cash_coupon.php?chapter=13_1
class WxRedPack
{
//配置参数信息
const SHANGHUHAO = "***********";//商户号
const PARTNERKEY = "***********"; //核心支付函数,参数：请求地址和参数
function pay($url, $obj)
{
$obj['nonce_str'] = $this->create_noncestr(); //创建随机字符串
$stringA = $this->create_qianming($obj, false); //创建签名
$stringSignTemp = $stringA . "&key=2470f691aee2bfae92087c10e81cb4d0"; //签名后加api
$sign = strtoupper(md5($stringSignTemp)); //签名加密并大写
$obj['sign'] = $sign; //将签名传入数组
$postXml = $this->arrayToXml($obj); //将参数转为xml格式
$responseXml = $this->curl_post_ssl($url, $postXml); //提交请求
return $responseXml;
} //生成签名,参数：生成签名的参数和是否编码
function create_qianming($arr, $urlencode)
{
$buff = "";
ksort($arr); //对传进来的数组参数里面的内容按照字母顺序排序，a在前面，z在最后（字典序）
foreach ($arr as $k => $v) {
if (null != $v && "null" != $v && "sign" != $k) { //签名不要转码
if ($urlencode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
}
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1); //去掉末尾符号“&”
}
return $reqPar;
} //生成随机字符串，默认32位
function create_noncestr($length = 32)
{
//创建随机字符
$chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
} //数组转xml
function arrayToXml($arr)
{
$xml = "<xml>";
foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else {
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
}
}
$xml .= "</xml>";
return $xml;
} //post请求网站，需要证书
function curl_post_ssl($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 .
'cert' . DIRECTORY_SEPARATOR . 'apiclient_cert.pem');
curl_setopt($ch, CURLOPT_SSLKEY, dirname(__FILE__) . DIRECTORY_SEPARATOR .
'cert' . DIRECTORY_SEPARATOR . 'apiclient_key.pem');
curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . DIRECTORY_SEPARATOR .
'cert' . 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;
}
}}
然后调用:
public function setredpack($moneys,$openid)
{
$money = $moneys; //最低1元，单位分
$sender = "******";
$obj2 = array();
$obj2['wxappid'] = "**********"; //appid
$obj2['mch_id'] = "***********"; //商户id
$obj2['mch_billno'] = "********" . date('YmdHis') . rand(1000, 9999);//商户订单号
$obj2['client_ip'] = $_SERVER['REMOTE_ADDR'];
$obj2['re_openid'] = $openid; //接收红包openid
$obj2['total_amount'] = $money;
$obj2['min_value'] = $money;
$obj2['max_value'] = $money;
$obj2['total_num'] = 1;
$obj2['scene_id'] = 'PRODUCT_2';
$obj2['nick_name'] = $sender;
$obj2['send_name'] = $sender;
$obj2['wishing'] = "恭喜发财";
$obj2['act_name'] = $sender ;
$obj2['remark'] = $sender ; $url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";
$Wxpay = new WxRedPack();
$res = $wxpay->pay($url, $obj2);return $res;
}
另一个版本方法：
一个PHP文件搞定微信支付系列之现金红包
网上的很多PHP微信支付接入教程都颇为复杂，且需要配置和引入较多的文件，本人通过整理后给出一个单文件版的，希望可以给各位想接入微信支付的带来些许帮助和借鉴意义。
直接运行该文件即可给指定的微信用户发送现金红包。
需要注意的事项：
-
1.微信现金红包要求必传证书，需要到https://pay.weixin.qq.com 账户中心->账户设置->API安全->下载证书，然后修改代码中的证书路径
-
2.默认的使用场景是抽奖（即scene_id参数为PRODUCT_2），额度是1-200元，所以测试时的最低金额是1元。如需修改在产品中心->产品大全->现金红包->产品设置中修改
-
3.该文件需放到支付授权目录下，可以在微信支付商户平台->产品中心->开发配置中设置。
-
4.如提示签名错误可以通过微信支付签名验证工具进行验证：https://pay.weixin.qq.com/wik…
-
5.错误码参照 ：https://pay.weixin.qq.com/wik…
-
<?php
/**
* 关于微信现金红包的说明
* 1.微信现金红包要求必传证书，需要到https://pay.weixin.qq.com 账户中心->账户设置->API安全->下载证书，证书路径在第214行和217行修改
* 2.默认的使用场景是抽奖（即scene_id参数为PRODUCT_2），额度是1-200元，所以测试时的最低金额是1元。如需修改在产品中心->产品大全->现金红包->产品设置中修改
* 3.错误码参照 ：https://pay.weixin.qq.com/wiki/doc/api/tools/cash_coupon.php?chapter=13_4&index=3
*/
header('Content-type:text/html; Charset=utf-8');
$mchid = 'xxxxx'; //微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送
$appid = 'xxxxx'; //微信支付申请对应的公众号的APPID
$appKey = 'xxxxx'; //微信支付申请对应的公众号的APP Key
$apiKey = 'xxxxx'; //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥//①、获取当前访问页面的用户openid（如果给指定用户发送红包，则填写指定用户的openid)
$wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey);
$openId = $wxPay->GetOpenid(); //获取openid
if(!$openId) exit('获取openid失败');
//②、发送红包
$outTradeNo = uniqid(); //你自己的商品订单号
$payAmount = 1; //红包金额，单位:元
$sendName = '织梦猫'; //红包发送者名称
$wishing = '感谢您参加猜灯谜活动，祝您元宵节快乐！'; //红包祝福语
$act_name='猜灯谜抢红包活动'; //活动名称
$result = $wxPay->createJsBizPackage($openId,$payAmount,$outTradeNo,$sendName,$wishing,$act_name);
echo 'success';class WxpayService
{
protected $mchid;
protected $appid;
protected $appKey;
protected $apiKey;
public $data = null; public function __construct($mchid, $appid, $appKey,$key)
{
$this->mchid = $mchid;
$this->appid = $appid;
$this->appKey = $appKey;
$this->apiKey = $key;
} /**
* 通过跳转获取用户的openid，跳转流程如下：
* 1、设置自己需要调回的url及其其他参数，跳转到微信服务器https://open.weixin.qq.com/connect/oauth2/authorize
* 2、微信服务处理完成之后会跳转回用户redirect_uri地址，此时会带上一些参数，如：code
* @return 用户的openid
*/
public function GetOpenid()
{
//通过code获得openid
if (!isset($_GET['code'])){
//触发微信返回code码
$scheme = $_SERVER['HTTPS']=='on' ? 'https://' : 'http://';
$baseUrl = urlencode($scheme.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].$_SERVER['QUERY_STRING']);
$url = $this->__CreateOauthUrlForCode($baseUrl);
Header("Location: $url");
exit();
} else {
//获取code码，以获取openid
$code = $_GET['code'];
$openid = $this->getOpenidFromMp($code);
return $openid;
}
} /**
* 通过code从工作平台获取openid机器access_token
* @param string $code 微信跳转回来带上的code
* @return openid
*/
public function GetOpenidFromMp($code)
{
$url = $this->__CreateOauthUrlForOpenid($code);
$res = self::curlGet($url);
//取出openid
$data = json_decode($res,true);
$this->data = $data;
$openid = $data['openid'];
return $openid;
} /**
* 构造获取open和access_toke的url地址
* @param string $code，微信跳转带回的code
* @return 请求的url
*/
private function __CreateOauthUrlForOpenid($code)
{
$urlObj["appid"] = $this->appid;
$urlObj["secret"] = $this->appKey;
$urlObj["code"] = $code;
$urlObj["grant_type"] = "authorization_code";
$bizString = $this->ToUrlParams($urlObj);
return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString;
} /**
* 构造获取code的url连接
* @param string $redirectUrl 微信服务器回跳的url，需要url编码
* @return 返回构造好的url
*/
private function __CreateOauthUrlForCode($redirectUrl)
{
$urlObj["appid"] = $this->appid;
$urlObj["redirect_uri"] = "$redirectUrl";
$urlObj["response_type"] = "code";
$urlObj["scope"] = "snsapi_base";
$urlObj["state"] = "STATE"."#wechat_redirect";
$bizString = $this->ToUrlParams($urlObj);
return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString;
} /**
* 拼接签名字符串
* @param array $urlObj
* @return 返回已经拼接好的字符串
*/
private function ToUrlParams($urlObj)
{
$buff = "";
foreach ($urlObj as $k => $v)
{
if($k != "sign") $buff .= $k . "=" . $v . "&";
}
$buff = trim($buff, "&");
return $buff;
} /**
* 发送红包
* @param string $openid 用户在该公众号下的Openid
* @param float $totalFee 红包金额 单位元
* @param string $outTradeNo 订单号
* @param string $orderName 红包发送者名称
* @param string $wishing 祝福语
* @param string $actName 互动名称
* @return string
*/
public function createJsBizPackage($openid, $totalFee, $outTradeNo, $sendName,$wishing,$actName)
{
$config = array(
'mch_id' => $this->mchid,
'appid' => $this->appid,
'key' => $this->apiKey,
);
$unified = array(
'wxappid' => $config['appid'],
'send_name' => $sendName,
'mch_id' => $config['mch_id'],
'nonce_str' => self::createNonceStr(),
're_openid' => $openid,
'mch_billno' => $outTradeNo,
'client_ip' => '127.0.0.1',
'total_amount' => intval($totalFee * 100), //单位 转为分
'total_num'=>1, //红包发放总人数
'wishing'=>$wishing, //红包祝福语
'act_name'=>$actName, //活动名称
'remark'=>'remark', //备注信息，如为中文注意转为UTF8编码
'scene_id'=>'PRODUCT_2', //发放红包使用场景，红包金额大于200时必传。https://pay.weixin.qq.com/wiki/doc/api/tools/cash_coupon.php?chapter=13_4&index=3
);
$unified['sign'] = self::getSign($unified, $config['key']);
$responseXml = $this->curlPost('https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack', self::arrayToXml($unified));
$unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);
if ($unifiedOrder === false) {
die('parse xml error');
}
if ($unifiedOrder->return_code != 'SUCCESS') {
die($unifiedOrder->return_msg);
}
if ($unifiedOrder->result_code != 'SUCCESS') {
die($unifiedOrder->err_code);
}
return true;
} public static function curlGet($url = '', $options = array())
{
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
if (!empty($options)) {
curl_setopt_array($ch, $options);
}
//https请求 不验证证书和host
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$data = curl_exec($ch);
curl_close($ch);
return $data;
} public function curlPost($url = '', $postData = '', $options = array())
{
if (is_array($postData)) {
$postData = http_build_query($postData);
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数
if (!empty($options)) {
curl_setopt_array($ch, $options);
}
//https请求 不验证证书和host
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); //第一种方法，cert 与 key 分别属于两个.pem文件
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/cert/apiclient_cert.pem');
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLKEY,getcwd().'/cert/apiclient_key.pem');
//第二种方式，两个文件合成一个.pem文件
// curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem');
$data = curl_exec($ch);
curl_close($ch);
return $data;
} public static function createNonceStr($length = 16)
{
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$str = '';
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
public static function arrayToXml($arr)
{
$xml = "<xml>";
foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
}
$xml .= "</xml>";
return $xml;
} public static function getSign($params, $key)
{
ksort($params, SORT_STRING);
$unSignParaString = self::formatQueryParaMap($params, false);
$signStr = strtoupper(md5($unSignParaString . "&key=" . $key));
return $signStr;
}
protected static function formatQueryParaMap($paraMap, $urlEncode = false)
{
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if (null != $v && "null" != $v) {
if ($urlEncode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
}
$reqPar = '';
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
}
?>github下载地址：https://github.com/dedemao/we…
