CI框架微信网页授权库

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appId = trim('你的appid');
			$this->appSecret = trim('你的appsecret');
		}
		
		function redirect_url($redirect)
		{
			/*授权页面*/
			
			$url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=$this->appId&redirect_uri=$redirect&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
			return $url;
		}
		/* 通过code换取access_token*/
		function access_token($code)
		{
			/*获取到的code换取access_token和openid*/
			
			$post_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$this->appId&secret=$this->appSecret&code=$code&grant_type=authorization_code";
						 // echo $post_url;exit();
			$return = $this->postdata($post_url);
			// print_r($return);exit();
			$access_token = $return['access_token'];
			$openid = $return['openid'];
			
			/*获取微信用户数据*/
			$get_userinfo = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN";
			$userinfo = json_decode(file_get_contents($get_userinfo));
			return $userinfo;
		}
		
		function eff($access_token,$openid)
		{
			/*检测access_token是否正确，errcode＝0 为正确*/
			$eff_url = "https://api.weixin.qq.com/sns/auth?access_token=$access_token&openid=$openid";
			$get_eff =json_decode(file_get_contents($eff_url));
			return $get_eff;
			
		}
	
		//通过curl方式提交code换取access_token数据
		function postdata($url)
		{
			 header('Content-Type:text/html;charset=utf-8');
			 // echo $url;exit();
		    $curl = curl_init();
		    curl_setopt($curl, CURLOPT_URL, $url);
		    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
		    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
		    curl_setopt($curl, CURLOPT_SSLVERSION, 1);
		    // 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($curl);
		    // var_dump($output);exit();
		    // print_r($output);exit();
		    $access = json_decode($output,true);
		    return $access;
		}
		/*
			这个位置开始是控制器index()传入的微信用户资料处理
		*/
			function save_session($data)
			{
				foreach ($data as $key => $value) {
					// $_SESSION['uid'] = $value['uid'];
					// $_SESSION['nickname'] = $value['nickname'];
					// $_SESSION['fullname'] = $value['fullname'];
					// $_SESSION['status'] = $value['status'];
					// $_SESSION['groups'] = $value['groups'];
					$_SESSION[$key] = $value;
				}
				return $_SESSION;
				// print_r($_SESSION);exit();
				// unset($_SESSION[0]);
				
			}
		function obj_to_arr($data)
		{
			// 进行转换成数组 使用 obj_to_arr方式
			$data = is_object($data)?get_object_vars($data):$data;
				foreach ($data as $key => $value) 
				{
					
					$arr[$key] = $value;
				}
				return $arr;
		}
	}