豆瓣的账号登录及api操作

.douban.php

<?php
/**
 * PHP Library for douban.com
 *
 * @author
 */
class doubanPHP
{
    function __construct($client_id, $client_secret, $access_token=NULL){
        $this->client_id=$client_id;
        $this->client_secret=$client_secret;
        $this->access_token=$access_token;
    }

    function login_url($callback_url, $scope=''){
        $params=array(
            'response_type'=>'code',
            'client_id'=>$this->client_id,
            'redirect_uri'=>$callback_url,
            'scope'=>$scope,
            'state'=>md5(time())
        );
        return 'https://www.douban.com/service/auth2/auth?'.http_build_query($params);
    }

    function access_token($callback_url, $code){
        $params=array(
            'grant_type'=>'authorization_code',
            'code'=>$code,
            'client_id'=>$this->client_id,
            'client_secret'=>$this->client_secret,
            'redirect_uri'=>$callback_url
        );
        $url='https://www.douban.com/service/auth2/token';
        return $this->http($url, http_build_query($params), 'POST');
    }

    function access_token_refresh($callback_url, $refresh_token){
        $params=array(
            'grant_type'=>'refresh_token',
            'refresh_token'=>$refresh_token,
            'client_id'=>$this->client_id,
            'client_secret'=>$this->client_secret,
            'redirect_uri'=>$callback_url
        );
        $url='https://www.douban.com/service/auth2/token';
        return $this->http($url, http_build_query($params), 'POST');
    }

    function me(){
        $params=array();
        $url='https://api.douban.com/v2/user/~me';
        return $this->api($url, $params);
    }

    function share($text, $title, $url, $description='', $pic=''){
        $params=array(
            'text'=>$text,
            'rec_title'=>$title,
            'rec_url'=>$url,
            'rec_desc'=>$description,
            'rec_image'=>$pic
        );
        $url='https://api.douban.com/shuo/v2/statuses/';
        return $this->api($url, $params, 'POST');
    }

    function api($url, $params, $method='GET'){
        $headers[]="Authorization: Bearer ".$this->access_token;
        if($method=='GET'){
            $result=$this->http($url.'?'.http_build_query($params), '', 'GET', $headers);
        }else{
            $result=$this->http($url, http_build_query($params), 'POST', $headers);
        }
        return $result;
    }

    function http($url, $postfields='', $method='GET', $headers=array()){
        $ci=curl_init();
        curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ci, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 30);
        curl_setopt($ci, CURLOPT_TIMEOUT, 30);
        if($method=='POST'){
            curl_setopt($ci, CURLOPT_POST, TRUE);
            if($postfields!='')curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
        }
        $headers[]="User-Agent: doubanPHP(piscdong.com)";
        curl_setopt($ci, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ci, CURLOPT_URL, $url);
        $response=curl_exec($ci);
        curl_close($ci);
        $json_r=array();
        if($response!='')$json_r=json_decode($response, true);
        return $json_r;
    }
}　

.config.php 

<?php
//配置文件
header('Content-Type: text/html; charset=UTF-8');

$douban_k=''; //豆瓣应用API Key
$douban_s=''; //豆瓣应用Secret
$callback_url='http://yoururl/callback.php'; //授权回调网址
$scope='douban_basic_common,shuo_basic_w'; //权限列表，具体权限请查看官方的api文档
?>　　

.index.php 

<?php
session_start();
require_once('config.php');
require_once('douban.php');

$douban_t=isset($_SESSION['douban_t'])?$_SESSION['douban_t']:'';

//检查是否已登录
if($douban_t!=''){
    $douban=new doubanPHP($douban_k, $douban_s, $douban_t);

    //获取登录用户信息
    $result=$douban->me();
    var_dump($result);

    /**
    //access token到期后使用refresh token刷新access token
    $result=$douban->access_token_refresh($callback_url, $_SESSION['douban_r']);
    var_dump($result);
    **/

    /**
    //发布分享
    $text='分享内容';
    $title='分享标题';
    $url='http://www.oschina.net/';
    $result=$douban->share($text, $title, $url);
    var_dump($result);
    **/

}else{
    //生成登录链接
    $douban=new doubanPHP($douban_k, $douban_s);
    $login_url=$douban->login_url($callback_url, $scope);
    echo '<a href="',$login_url,'">点击进入授权页面</a>';
}
?>

.callback.php

<?php
//授权回调页面，即配置文件中的$callback_url
session_start();
require_once('config.php');
require_once('douban.php');

if(isset($_GET['code']) && $_GET['code']!=''){
    $douban=new doubanPHP($douban_k, $douban_s);
    $result=$douban->access_token($callback_url, $_GET['code']);
}
if(isset($result['access_token']) && $result['access_token']!=''){
    echo '授权完成，请记录<br/>access token：<input size="50" value="',$result['access_token'],'"><br/>refresh token：<input size="50" value="',$result['refresh_token'],'">';

    //保存登录信息，此示例中使用session保存
    $_SESSION['douban_t']=$result['access_token']; //access token
    $_SESSION['douban_r']=$result['refresh_token']; //refresh token
}else{
    echo '授权失败';
}
echo '<br/><a href="./">返回</a>';
?>