微信网页授权及企业付款到零钱

页面授权

private $appid = '基础设置中的appid';
private $appsecret = '基础设置中的开发者密码';
/**
* 1、获取微信用户信息，判断有没有code，有使用code换取access_token，没有去获取code。
* @return array 微信用户信息数组
*/
public function index(){
if (!isset($_GET['code'])){//没有code，去微信接口获取code码
$callback = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];//微信服务器回调url，这里是本页url
$this->get_code($callback);
} else {//获取code后跳转回来到这里了
$code = $_GET['code'];
//在这我只需要OpenId
$data = $this->get_access_token($code);//获取网页授权access_token和用户openid
// $data_all = $this->get_user_info($data['access_token'],$data['openid']);//获取微信用户信息
//将获取到的openid保存到session中
$_SESSION['openid']=$data['openid'];

}
}
/**
* 2、用户授权并获取code
* @param string $callback 微信服务器回调链接url
*/
private function get_code($callback){
$appid = $this->appid;
$scope = 'snsapi_userinfo';
$state = md5(uniqid(rand(), TRUE));//唯一ID标识符绝对不会重复
$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . $appid . '&redirect_uri=' . urlencode($callback) .  '&response_type=code&scope=' . $scope . '&state=' . $state . '&connect_redirect=1#wechat_redirect';
header("Location:$url");
}
/**
* 3、使用code换取access_token
* @param string 用于换取access_token的code，微信提供
* @return array access_token和用户openid数组
*/
private function get_access_token($code){
$appid = $this->appid;
$appsecret = $this->appsecret;
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$appid."&secret=".$appsecret."&code=".$code."&grant_type=authorization_code";
$user = json_decode(file_get_contents($url));
if (isset($user->errcode)) {
echo 'error:' . $user->errcode.'<hr>msg  :' . $user->errmsg;exit;
}
$data = json_decode(json_encode($user),true);//返回的json数组转换成array数组
return $data;
}
/**
* 4、使用access_token获取用户信息
* @param string access_token
* @param string 用户的openid
* @return array 用户信息数组
*/
private function get_user_info($access_token,$openid){
$url = 'https://api.weixin.qq.com/sns/userinfo?access_token=' . $access_token . '&openid=' . $openid . '&lang=zh_CN';
$user = json_decode(file_get_contents($url));
if (isset($user->errcode)) {
echo 'error:' . $user->errcode.'<hr>msg  :' . $user->errmsg;exit;
}
$data = json_decode(json_encode($user),true);//返回的json数组转换成array数组
return $data;
}

public function __construct()
{
parent::__construct();
}

企业付款

/**
*  array转xml
*/
public 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;
}
//使用证书，以post方式提交xml到对应的接口url

/**
*   作用：使用证书，以post方式提交xml到对应的接口url
*/
function curl_post_ssl($url,$vars,$second=30){
$ch = curl_init();
//超出时间
curl_setopt($ch,CURLOPT_TIMEOUT,$second);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_SSLCERT, "证书/必须是绝对路径");
curl_setopt($ch, CURLOPT_SSLKEY, "证书/必须是绝对路径");

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 1;
}
}

//企业向个人付款
public function payToUser($openid,$desc,$amount)
{
//微信付款到个人的接口
$url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
$params["mch_appid"]        = '****';   //公众账号appid
$params["mchid"]            = '****';   //商户号 微信支付平台账号
$params["nonce_str"]        = 'zhongyaojixie11'.mt_rand(100,999);   //随机字符串
$params["partner_trade_no"] = mt_rand(10000000,99999999);           //商户订单号
$params["amount"]           = $amount;          //金额
$params["desc"]             = $desc;            //企业付款描述
$params["openid"]           = $openid;          //用户openid
$params["check_name"]       = 'NO_CHECK';       //不检验用户姓名
$params['spbill_create_ip'] = '47.93.216.156';   //获取IP

//生成签名(签名算法后面详细介绍)
$str = 'amount='.$params["amount"].'&check_name='.$params["check_name"].'&desc='.$params["desc"].'&mch_appid='.$params["mch_appid"].'&mchid='.$params["mchid"].'&nonce_str='.$params["nonce_str"].'&openid='.$params["openid"].'&partner_trade_no='.$params["partner_trade_no"].'&spbill_create_ip='.$params['spbill_create_ip'].'&key=iBbQvUdIif9Yhj64Q4vJ7D90qvU2nS9r';
//md5加密 转换成大写
$sign = strtoupper(md5($str));
$params["sign"] = $sign;//签名
$xml = $this->arrayToXml($params);
return $this->curl_post_ssl($url, $xml);
}