QQ登录OAuth2.0 php接入类

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/**?*?* qq登录?* @author http://www.heui.org?*?*/class Oauth_qq{??private static $_instance;??private $config = array();???private function __construct($config)??{????$this->Oauth_qq($config);??}???public static function getInstance($config)??{????if(!isset(self::$_instance))????{??????$c=__CLASS__;??????self::$_instance = new $c($config);????}????return self::$_instance;??}???private function Oauth_qq($config)??{????$this->config = $config;????$_SESSION["appid"]??? = $this->config['appid'];????$_SESSION["appkey"]?? = $this->config['appkey'];????$_SESSION["callback"] = $this->config['callback'];????$_SESSION["scope"] = "get_user_info,add_share,list_album,add_album,upload_pic,add_topic,add_one_blog,add_weibo";??}???function login()??{????$_SESSION['state'] = md5(uniqid(rand(), TRUE)); //CSRF protection????$login_url = "https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id="????. $_SESSION["appid"] . "&redirect_uri=" . urlencode($_SESSION["callback"])????. "&state=" . $_SESSION['state']????. "&scope=".$_SESSION["scope"];????header("Location:$login_url");??}???function callback()??{????if($_REQUEST['state'] == $_SESSION['state']) //csrf????{??????$token_url = "https://graph.qq.com/oauth2.0/token?grant_type=authorization_code&"??????. "client_id=" . $_SESSION["appid"]. "&redirect_uri=" . urlencode($_SESSION["callback"])??????. "&client_secret=" . $_SESSION["appkey"]. "&code=" . $_REQUEST["code"];???????$response = get_url_contents($token_url);??????if (strpos($response, "callback") !== false)??????{????????$lpos = strpos($response, "(");????????$rpos = strrpos($response, ")");????????$response? = substr($response, $lpos + 1, $rpos - $lpos -1);????????$msg = json_decode($response);????????if (isset($msg->error))????????{??????????echo "<h3>error:</h3>" . $msg->error;??????????echo "<h3>msg? :</h3>" . $msg->error_description;??????????exit;????????}??????}???????$params = array();??????parse_str($response, $params);???????$_SESSION["access_token"] = $params["access_token"];????}????else????{??????echo("The state does not match. You may be a victim of CSRF.");????}??}???function get_openid()??{????$graph_url = "https://graph.qq.com/oauth2.0/me?access_token="????. $_SESSION['access_token'];?????$str? = get_url_contents($graph_url);????if (strpos($str, "callback") !== false)????{??????$lpos = strpos($str, "(");??????$rpos = strrpos($str, ")");??????$str? = substr($str, $lpos + 1, $rpos - $lpos -1);????}?????$user = json_decode($str);????if (isset($user->error))????{??????echo "<h3>error:</h3>" . $user->error;??????echo "<h3>msg? :</h3>" . $user->error_description;??????exit;????}?????//set openid to session????return $_SESSION["openid"] = $user->openid;??}???function get_user_info()??{????$get_user_info = "https://graph.qq.com/user/get_user_info?"????. "access_token=" . $_SESSION['access_token']????. "&oauth_consumer_key=" . $_SESSION["appid"]????. "&openid=" . $_SESSION["openid"]????. "&format=json";?????$info = get_url_contents($get_user_info);????$arr = json_decode($info, true);?????return $arr;??}???public function __clone()??{????trigger_error('Clone is not allow' ,E_USER_ERROR);??}?}?/* 公用函数 */if (!function_exists("do_post")){??function do_post($url, $data)??{????$ch = curl_init();????curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);????curl_setopt($ch, CURLOPT_POST, TRUE);????curl_setopt($ch, CURLOPT_POSTFIELDS, $data);????curl_setopt($ch, CURLOPT_URL, $url);????$ret = curl_exec($ch);?????curl_close($ch);????return $ret;??}}if (!function_exists("get_url_contents")){??function get_url_contents($url)??{????if (ini_get("allow_url_fopen") == "1")????return file_get_contents($url);?????$ch = curl_init();????curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);????curl_setopt($ch, CURLOPT_URL, $url);????$result =? curl_exec($ch);????curl_close($ch);?????return $result;??}}

使用实例：

$config['appid']??? = '';$config['appkey']?? = '';$config['callback'] = '';$o_qq = Oauth_qq::getInstance($config);?//then$o_qq->login();//or$o_qq->callback();$o_qq->get_openid();$o_qq->get_user_info();

原文：http://www.heui.org/archives/454