\qqapi

<?php

/**
 * qqapi.class.php  QQ接口Api，用于以QQ登录网站
 */
class qqapi {

    private $appid, $appkey, $callback, $access_token, $openid;

    /**
     * 构造方法，用于初始化QQ所需参数
     * @param $appid, $appkey, $callback
     */
    public function __construct($appid, $appkey, $callback) {
        $this->appid = $appid;
        $this->appkey = $appkey;
        $this->callback = $callback;
        $this->access_token = '';
        $this->openid = '';
    }

    /**
     * 给外部调用的方法，供QQ登录
     */
    public function redirect_to_login() {
        //跳转到QQ登录页的接口地址, 不要更改!!
        $redirect = "https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id=$this->appid&scope=&redirect_uri=" . rawurlencode($this->callback);
        header("Location:$redirect");
    }

    /**
     * 获得登录的 openid
     * @param $code
     * @return string
     */
    public function get_openid($code) {
        $url = "https://graph.qq.com/oauth2.0/token?grant_type=authorization_code&client_id=$this->appid&client_secret=$this->appkey&code=$code&redirect_uri=" . rawurlencode($this->callback);
        $content = file_get_contents($url);
        if (stristr($content, 'access_token=')) {
            $params = explode('&', $content);
            $tokens = explode('=', $params[0]);
            $token = $tokens[1];
            $this->access_token = $token;
            if ($token) {
                $url = "https://graph.qq.com/oauth2.0/me?access_token=$token";
                $content = file_get_contents($url);
                $content = str_replace('callback( ', '', $content);
                $content = str_replace(' );', '', $content);
                $returns = json_decode($content);
                $openid = $returns->openid;
                $this->openid = $openid;
                $_SESSION["token2"] = $openid;
            } else {
                $openid = '';
            }
        } elseif (stristr($content, 'error')) {
            $openid = '';
        }
        return $openid;
    }

    /**
     * 获取用户信息，返回一维数组
     * @return array
     */
    public function get_user_info() {
        $url = "https://graph.qq.com/user/get_user_info?access_token=$this->access_token&oauth_consumer_key=$this->appid&openid=$this->openid";
        $content = file_get_contents($url);
        return json_decode($content, true);
    }

}

?>