text: <?php
  // +----------------------------------------------------------------------
  // | TOPThink [ WE CAN DO IT JUST THINK ]
  // +----------------------------------------------------------------------
  // | Copyright (c) 2010 http://topthink.com All rights reserved.
  // +----------------------------------------------------------------------
  // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
  // +----------------------------------------------------------------------
  // | Author: 麦当苗儿 <zuojiazi.cn@gmail.com> <http://www.zjzit.cn>
  // +----------------------------------------------------------------------
  // | SohuSDK.class.php 2013-03-27
  // +----------------------------------------------------------------------
  
  class SohuSDK extends ThinkOauth{
  	/**
  	 * 获取requestCode的api接口
  	 * @var string
  	 */
  	protected $GetRequestCodeURL = 'https://api.sohu.com/oauth2/authorize';
  
  	/**
  	 * 获取access_token的api接口
  	 * @var string
  	 */
  	protected $GetAccessTokenURL = 'https://api.sohu.com/oauth2/token';
  
  	/**
  	 * API根路径
  	 * @var string
  	 */
  	protected $ApiBase = 'https://api.sohu.com/rest/';
  	
  	/**
  	 * 组装接口调用参数 并调用接口
  	 * @param  string $api    搜狐API
  	 * @param  string $param  调用API的额外参数
  	 * @param  string $method HTTP请求方法 默认为GET
  	 * @return json
  	 */
  	public function call($api, $param = '', $method = 'GET', $multi = false){		
  		/* 搜狐调用公共参数 */
  		$params = array(
  			'access_token' => $this->Token['access_token'],
  		);
  
  		$data = $this->http($this->url($api), $this->param($params, $param), $method);
  		return json_decode($data, true);
  	}
  	
  	/**
  	 * 解析access_token方法请求后的返回值
  	 * @param string $result 获取access_token的方法的返回值
  	 */
  	protected function parseToken($result, $extend){
  		$data = json_decode($result, true);
  		if($data['access_token'] && $data['expires_in'] && $data['refresh_token'] && $data['open_id']){
  			$data['openid'] = $data['open_id'];
  			unset($data['open_id']);
  			return $data;
  		} else
  			throw new Exception("获取搜狐ACCESS_TOKEN出错：{$data['error']}");
  	}
  	
  	/**
  	 * 获取当前授权应用的openid
  	 * @return string
  	 */
  	public function openid(){
  		$data = $this->Token;
  		if(isset($data['openid']))
  			return $data['openid'];
  		else
  			throw new Exception('没有获取到搜狐用户ID！');
  	}
  	
  }