PHP实现QQ快速登录

前言：

PHP实现QQ快速登录，罗列了三种方法

方法一：面向过程，回调地址和首次触发登录写到了一个方法页面【因为有了if做判断】，

方法二，三：面向对象

1.先调用登录方法，向腾讯发送请求，

2.腾讯携带本网站唯一对应参数OPENID,ACCESSTOKEN，返回到对应回调页面，

3.回调页面接受到腾讯的参数后，通过这个两个参数，再发出对应的请求，如查询用户的数据。

4.腾讯做出对应的操作，如返回这个用户的数据给你

即使你没看懂，也没关系，按照我下面的流程来，保证你可以实现。

前期准备：

使用人家腾讯的功能，总得和人家打招呼吧！

QQ互联首页：http://connect.qq.com/

进入网址后，按如下操作来：

一.进入官网

二.申请创建【网站】应用

三.按要求填写资料

注意网站地址：填写你要设置快速登录的网址，eg:http://www.test.com;

回调地址:填写你发送QQ快速登陆后，腾讯得给你信息，这个信息往此页面接受。eg:http://www.test.com/accept_info.php

【详细的申请填写，请见官方提示，这里不做赘述】

四.申请成功后，完善信息

最终要求，获得APP_ID ，APP_KEY

五.代码部分：在你对应的PHP文件内写入，如下

//方法一，面向过程法

使用方法：配置$app_id，$app_secret，$my_url后，其他原封复制即可，$user_data为返回的登录信息

代码：

//应用的APPID
$app_id = "你的APPID";
//应用的APPKEY
$app_secret = "你的APPKEY";
//【成功授权】后的回调地址，即此地址在腾讯的信息中有储存
$my_url = "你的回调网址";

//Step1：获取Authorization Code
session_start();
$code = $_REQUEST["code"];//存放Authorization Code
if(empty($code))
{
//state参数用于防止CSRF攻击，成功授权后回调时会原样带回
$_SESSION['state'] = md5(uniqid(rand(), TRUE));
//拼接URL
$dialog_url = "https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id="
. $app_id . "&redirect_uri=" . urlencode($my_url) . "&state="
. $_SESSION['state'];
echo("<script> top.location.href='" . $dialog_url . "'</script>");
}

//Step2：通过Authorization Code获取Access Token
if($_REQUEST['state'] == $_SESSION['state'] || 1)
{
//拼接URL
$token_url = "https://graph.qq.com/oauth2.0/token?grant_type=authorization_code&"
. "client_id=" . $app_id . "&redirect_uri=" . urlencode($my_url)
. "&client_secret=" . $app_secret . "&code=" . $code;
$response = file_get_contents($token_url);
if (strpos($response, "callback") !== false)//如果登录用户临时改变主意取消了，返回true!==false,否则执行step3
{
$lpos = strpos($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;
}
}

//Step3：使用Access Token来获取用户的OpenID
$params = array();
parse_str($response, $params);//把传回来的数据参数变量化
$graph_url = "https://graph.qq.com/oauth2.0/me?access_token=".$params['access_token'];
$str  = file_get_contents($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);//存放返回的数据 client_id  ，openid
if (isset($user->error))
{
echo "<h3>error:</h3>" . $user->error;
echo "<h3>msg  :</h3>" . $user->error_description;
exit;
}
//echo("Hello " . $user->openid);
//echo("Hello " . $params['access_token']);

//Step4：使用<span style="font-family: Arial, Helvetica, sans-serif;">openid,</span><span style="font-family: Arial, Helvetica, sans-serif;">access_token来获取所接受的用户信息。</span>
$user_data_url = "https://graph.qq.com/user/get_user_info?access_token={$params['access_token']}&oauth_consumer_key={$app_id}&openid={$user->openid}&format=json";

$user_data = file_get_contents($user_data_url);//此为获取到的user信息
}
else
{
echo("The state does not match. You may be a victim of CSRF.");
}

//方法二。面向对象 使用类QQ_LoginAction.class

使用方法：

1.在QQ_LoginAction.class中正确配置 APPID，APPKEY CALLBACK(回调网址)

2.在调用方法中，代码：

$qq_login = new \Component\QQ_LoginAction();		//引入此类文件即可
$qq_login->qq_login();					//调用登录方法，向腾讯发出快速登录请求

3.在回调页面中，代码：

$qc = new \Component\QQ_LoginAction();
$acs = $qc->qq_callback();<span style="white-space:pre">		//access_token
$oid=$qc->get_openid();<span style="white-space:pre">			//openid
$user_data = $qc->get_user_info();<span style="white-space:pre">	//get_user_info()为获得该用户的信息，其他操作方法见API文档

4.$user_data即为返回的用户数据。

5.QQ_LoginAction.class.php 文件代码：【用的ThinkPHP3.2】

<?php
namespace Component;

session_start();
define('APPID','XXXX');         //appid
define('APPKEY','XXXX');        //appkey
define('CALLBACK','XXXX');      //回调地址
define('SCOPE','get_user_info,list_album,add_album,upload_pic,add_topic,add_weibo');      //授权接口列表
class QQ_LoginAction {
const GET_AUTH_CODE_URL = "https://graph.qq.com/oauth2.0/authorize";
const GET_ACCESS_TOKEN_URL = "https://graph.qq.com/oauth2.0/token";
const GET_OPENID_URL = "https://graph.qq.com/oauth2.0/me";
private  $APIMap = array(
"get_user_info" => array(          //获取用户资料
"https://graph.qq.com/user/get_user_info",
array("format" => "json"),
),
"add_t" => array(                //发布一条普通微博
"https://graph.qq.com/t/add_t",
array("format" => "json", "content","#clientip","#longitude","#latitude","#compatibleflag"),
"POST"
),
"add_pic_t" => array(             //发布一条图片微博
"https://graph.qq.com/t/add_pic_t",
array("content", "pic", "format" => "json", "#clientip", "#longitude", "#latitude", "#syncflag", "#compatiblefalg"),
"POST"
),
"del_t" => array(                     //删除一条微博
"https://graph.qq.com/t/del_t",
array("id", "format" => "json"),
"POST"
),
"get_repost_list" => array(             //获取单条微博的转发或点评列表
"https://graph.qq.com/t/get_repost_list",
array("flag", "rootid", "pageflag", "pagetime", "reqnum", "twitterid", "format" => "json")
),
"get_info" => array(                  //获取当前用户资料
"https://graph.qq.com/user/get_info",
array("format" => "json")
),
"get_other_info" => array(               //获取其他用户资料
"https://graph.qq.com/user/get_other_info",
array("format" => "json", "#name-1", "#fopenid-1")
),
"get_fanslist" => array(
"https://graph.qq.com/relation/get_fanslist",   //我的微博粉丝列表
array("format" => "json", "reqnum", "startindex", "#mode", "#install", "#sex")
),
"get_idollist" => array(
"https://graph.qq.com/relation/get_idollist",   //我的微博收听列表
array("format" => "json", "reqnum", "startindex", "#mode", "#install")
),
"add_idol" => array(
"https://graph.qq.com/relation/add_idol",     //微博收听某用户
array("format" => "json", "#name-1", "#fopenids-1"),
"POST"
),
"del_idol" => array(          //微博取消收听某用户
"https://graph.qq.com/relation/del_idol",
array("format" => "json", "#name-1", "#fopenid-1"),
"POST"
)
);
private $keysArr;
function __construct(){
if($_SESSION["openid"]){
$this->keysArr = array(
"oauth_consumer_key" => APPID,
"access_token" => $_SESSION['access_token'],
"openid" => $_SESSION["openid"]
);
}else{
$this->keysArr = array(
"oauth_consumer_key" => APPID
);
}
}
public function qq_login(){
//-------生成唯一随机串防CSRF攻击
$_SESSION['state'] = md5(uniqid(rand(), TRUE));
$keysArr = array(
"response_type" => "code",
"client_id" => APPID,
"redirect_uri" => CALLBACK,
"state" => $_SESSION['state'],
"scope" => SCOPE
);
$login_url = self::GET_AUTH_CODE_URL.'?'.http_build_query($keysArr);
header("Location:$login_url");
}
public function qq_callback(){
//--------验证state防止CSRF攻击
if($_GET['state'] != $_SESSION['state']){
return false;
}
//-------请求参数列表
$keysArr = array(
"grant_type" => "authorization_code",
"client_id" => APPID,
"redirect_uri" => CALLBACK,
"client_secret" => APPKEY,
"code" => $_GET['code']
);
//------构造请求access_token的url
$token_url = self::GET_ACCESS_TOKEN_URL.'?'.http_build_query($keysArr);
$response = $this->get_contents($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)){
$this->showError($msg->error, $msg->error_description);
}
}
$params = array();
parse_str($response, $params);
$_SESSION["access_token"]=$params["access_token"];
$this->keysArr['access_token']=$params['access_token'];
return $params["access_token"];
}

public function get_contents($url){
if (ini_get("allow_url_fopen") == "1") {
$response = file_get_contents($url);
}else{
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_URL, $url);
$response =  curl_exec($ch);
curl_close($ch);
}
if(empty($response)){
return false;
}
return $response;
}
public function get_openid(){
//-------请求参数列表
$keysArr = array(
"access_token" => $_SESSION["access_token"]
);
$graph_url = self::GET_OPENID_URL.'?'.http_build_query($keysArr);
$response = $this->get_contents($graph_url);
//--------检测错误是否发生
if(strpos($response, "callback") !== false){
$lpos = strpos($response, "(");
$rpos = strrpos($response, ")");
$response = substr($response, $lpos + 1, $rpos - $lpos -1);
}
$user = json_decode($response);
if(isset($user->error)){
$this->showError($user->error, $user->error_description);
}
//------记录openid
$_SESSION['openid']=$user->openid;
$this->keysArr['openid']=$user->openid;
return $user->openid;
}

/**
* showError
* 显示错误信息
* @param int $code    错误代码
* @param string $description 描述信息（可选）
*/
public function showError($code, $description = '$'){
echo "<meta charset=\"UTF-8\">";
echo "<h3>error:</h3>$code";
echo "<h3>msg  :</h3>$description";
exit();
}

/**
* _call
* 魔术方法，做api调用转发
* @param string $name    调用的方法名称
* @param array $arg      参数列表数组
* @since 5.0
* @return array          返加调用结果数组
*/
public function __call($name,$arg){
//如果APIMap不存在相应的api
if(empty($this->APIMap[$name])){
$this->showError("api调用名称错误","不存在的API: <span style='color:red;'>$name</span>");
}
//从APIMap获取api相应参数
$baseUrl = $this->APIMap[$name][0];
$argsList = $this->APIMap[$name][1];
$method = isset($this->APIMap[$name][2]) ? $this->APIMap[$name][2] : "GET";
if(empty($arg)){
$arg[0] = null;
}
$responseArr = json_decode($this->_applyAPI($arg[0], $argsList, $baseUrl, $method),true);
//检查返回ret判断api是否成功调用
if($responseArr['ret'] == 0){
return $responseArr;
}else{
$this->showError($responseArr['ret'], $responseArr['msg']);
}
}

//调用相应api
private function _applyAPI($arr, $argsList, $baseUrl, $method){
$pre = "#";
$keysArr = $this->keysArr;
$optionArgList = array();//一些多项选填参数必选一的情形
foreach($argsList as $key => $val){
$tmpKey = $key;
$tmpVal = $val;
if(!is_string($key)){
$tmpKey = $val;
if(strpos($val,$pre) === 0){
$tmpVal = $pre;
$tmpKey = substr($tmpKey,1);
if(preg_match("/-(\d$)/", $tmpKey, $res)){
$tmpKey = str_replace($res[0], "", $tmpKey);
$optionArgList[]= $tmpKey;
}
}else{
$tmpVal = null;
}
}
//-----如果没有设置相应的参数
if(!isset($arr[$tmpKey]) || $arr[$tmpKey] === ""){
if($tmpVal == $pre){
continue;
}else if($tmpVal){//则使用默认的值
$arr[$tmpKey] = $tmpVal;
}else{
$this->showError("api调用参数错误","未传入参数$tmpKey");
}
}
$keysArr[$tmpKey] = $arr[$tmpKey];
}
//检查选填参数必填一的情形
if(count($optionArgList)!=0){
$n = 0;
foreach($optionArgList as $val){
if(in_array($val, array_keys($keysArr))){
$n++;
}
}
if(!$n){
$str = implode(",",$optionArgList);
$this->showError("api调用参数错误",$str."必填一个");
}
}
if($method == "POST"){
$response = $this->post($baseUrl, $keysArr, 0);
}else if($method == "GET"){
$baseUrl=$baseUrl.'?'.http_build_query($keysArr);
$response = $this->get_contents($baseUrl);
}
return $response;
}

public function post($url, $keysArr, $flag = 0){
$ch = curl_init();
if(! $flag) curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $keysArr);
curl_setopt($ch, CURLOPT_URL, $url);
$ret = curl_exec($ch);
curl_close($ch);
return $ret;
}
}

//方法三，面向对象 使用腾讯给的SDK

使用方法:腾讯SDK，API写的很详细，不做赘述

地址：http://wiki.connect.qq.com/%E7%BD%91%E7%AB%99%E6%8E%A5%E5%85%A5%E6%A6%82%E8%BF%B0

这样就实现了QQ快捷登录，其实很简单的，[b]大家可以试一试。[/b]

还有什么不清楚的，可以看看官方介绍，更详细，

Tips:如何在本地测试QQ快速登录

方法：修改HOST配置文件

1. 打开C:\Windows\System32\drivers\etc\host

2.
添加127.0.0.1 www.test.com

然后操作就可以了