微信授权登录获取openId和unionId

发表时间： 2016-10-14 14:10:03 | 浏览次数：

Array(
    [access_token] => 4A5T0uMIxn6jTZuRqkIqqN3gvgZ44oowfAlg5idlsayHR2KvNYpaXD0z_T8IooStg09k_LwczeoVuFo1D2ROINSDmJxVv5jhqLlFOsRahaI
    [expires_in] => 7200
    [refresh_token] => Ke6xysXtrLA90gCSIvyI1UdTNpuTzpjoAF8zsSO92QGGyM8nuB-zOpxC_G39i-feHvzENf2a2V0cJrh7khtwkw5KVWT3mvthVyEs_l-N9pw
    [openid] => o4Qp7jutSavCjhydjhPadfasa15g
    [scope] => snsapi_userinfo
)

Array(
    [access_token] => ieUCVH5t2GlMP_oLJduw2mIcNrWNrdMlGMNeLKscazRkFsT0dQbkjQ7pMuanVv4UWJ__oFG3dTfe1LeUC7Phw0BR-uoZ3ewSUKnsioj9Q2U
    [expires_in] => 7200
    [refresh_token] => JE2jcXDmSGlzZxErTEvezqpURZ-llh7MM_bMIoRIjU3hfGc85SgK7Bp6eO25RQd4ctNIb3aV35aPQeMaNb0AyQo2Sl3WPPixbOsGDIe6gjo
    [openid] => oSKzJvk9Uasfasdfylk3b-frjuo
    [scope] => snsapi_userinfo
    [unionid] => ozv7awqyc4jQqwerqwervOqQM
)

WeChat.class.php

// +----------------------------------------------------------------------
// | 微信公众平台开发
// | 1.发送模板短信
// | 2.获取微信用户信息
// | 3.微信授权登录获取openId和unionId
// | 4...
// +----------------------------------------------------------------------
// | Copyright (c) 2016 http://www.lrfun.com All rights reserved.
// +----------------------------------------------------------------------
// | Author: lrfun <admin@lrfun.com>
// +----------------------------------------------------------------------
// | Date: 2016-10-14
// +----------------------------------------------------------------------

Class WeChat{
	protected $appid;
    protected $secret;
    protected $accessToken;
	
	function __construct(){
		$this->appid       = "xxx";
		$this->secret      = "xxx";
		$this->accessToken = $this->getAccessToken();
	}
	
	/***
	 * 获取access_token
	 * @return
	 **/
	private function getAccessToken(){
		$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->appid."&secret=".$this->secret;
		$res = json_decode($this->httpRequest($url),true);
		//$access_token = $res['access_token'];
		return $res['access_token'];
	}
	
	/***
	 * POST或GET请求
	 * @url 请求url
	 * @data POST数据
	 * @return
	 **/
	private function httpRequest($url, $data = ""){
		$curl = curl_init();
		curl_setopt($curl, CURLOPT_URL, $url);
		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
		if(!empty($data)){	//判断是否为POST请求
			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;
	}
	
	/***
	 * 获取openID或unionId
	 * @code 微信授权返回的code
	 * @return
	 **/
	public function getOpenIdOrUnionId($code){
		$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appid."&secret=".$this->secret."&code=".$code."&grant_type=authorization_code";
		$data = $this->httpRequest($url);
		return $data;
	}
	
	/***
	 * 发送模板短信
	 * @data 请求数据
	 * @return
	 **/
	public function sendTemplateMessage($data = ""){
		$url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=".$this->accessToken;
		$result = $this->httpRequest($url, $data);
		return $result;
	}
	
	/***
	 * 通过openId获取用户信息
	 * @openId
	 * @return
	 **/
	public function getUserInfo($openId){
		$url  = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$this->accessToken."&openid=".$openId."&lang=zh_CN";
		$data = $this->httpRequest($url);
		return $data;
	}
}