php 网站微信第三方登陆

微信的类文件

我写在weichat.php中

<?php

namespace app\common;
class Wechat {

//高级功能-》开发者模式-》获取
private $app_id = 'xxxxxxxxxxxxxxxxxxxx'; //公众号appid
private $app_secret = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; //公众号app_secret
private $redirect_uri = 'http://www.xxxx.com/dovxlogin'; //授权之后跳转地址
/**
* 获取微信授权链接
*
* @param string $redirect_uri 跳转地址
* @param mixed $state 参数
*/
public function get_authorize_url($state)
{
$redirect_uri = urlencode($this->redirect_uri);
return "https://open.weixin.qq.com/connect/qrconnect?appid={$this->app_id}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_login&state={$state}#wechat_redirect";
}
/**
* 获取授权token
*
* @param string $code 通过get_authorize_url获取到的code
*/
public function get_access_token($code)
{
$token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={$this->app_id}&secret={$this->app_secret}&code={$code}&grant_type=authorization_code";
$token_data = $this->https_request($token_url);
//return $token_data;

return json_decode($token_data, TRUE);



}

/**
* 获取授权后的微信用户信息
*
* @param string $access_token
* @param string $open_id
*/
public function get_user_info($access_token,$open_id)
{
	if ($access_token && $open_id) {
		$info_url = "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$open_id}&lang=zh_CN";
		$info_data = $this->https_request($info_url);


		return json_decode($info_data, TRUE);

	}
}

	//https请求
	public function https_request($url, $data = null)
	{
		$curl = curl_init();
		curl_setopt($curl, CURLOPT_URL, $url);
		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
		if (!empty($data)){
			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;
	}

}
?>

controller中的方法

/**
	 * 第三方  微信登录
	 */
	public function VxLogin()
	{
		$weixin = new Wechat();
		$url = $weixin->get_authorize_url('xxxxxx');
		header("Location: ".$url."");
		die;

	}

	/**
	 * 第三方  微信登录
	 */
	public function doVxLogin()
	{
		$weixin = new Wechat();
		if (isset($_GET['code']))
		{
			$data = $weixin->get_access_token($_GET['code']);
			//获取个人信息
			$user = $weixin->get_user_info($data["access_token"],$data["openid"]);

//		//	已经拿到各种信息 ，这里写你需要处理的方法

			}else{
				//没有openID的情况
//				
			}


		}else{
			echo "NO CODE";
		}

	}