微信扫码登陆

一，微信开放平台创建网站应用（https://open.weixin.qq.com/）

 

获取AppID参数与AppSecret；

二，--------------实现扫码登陆源码

namespace Admin\Controller;


use Think\Controller;

class LoginController extends Controller
{
 //-------配置
 protected  $AppID = '你的AppID';
 protected  $AppSecret = '你的Secret';
 protected $callback  =  '扫码回调地址'; //回调地址
 public function index(){

 //微信登录

            
//-------生成唯一随机串防CSRF攻击
 
 $callback = urlencode($this->callback);
 $wxurl = "https://open.weixin.qq.com/connect/qrconnect?appid=".$this->AppID."&redirect_uri={$callback}&response_type=code&scope=snsapi_login#wechat_redirect";
 header("Location: $wxurl");
 
 public function getInfo(){
           
 $AppID = '$this->AppID';
 $AppSecret = '$this->AppSecret';
 $url='https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$AppID.'&secret='.$AppSecret.'&code='.$_GET['code'].'&grant_type=authorization_code';
 $ch = curl_init();
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_URL, $url);
 $json =  curl_exec($ch);
        curl_close($ch);
 $arr=json_decode($json,1);

 // p($arr);
 $url='https://api.weixin.qq.com/sns/userinfo?access_token='.$arr['access_token'].'&openid='.$arr['openid'].'&lang=zh_CN';
 $ch = curl_init();
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_URL, $url);
 $json =  curl_exec($ch);
        curl_close($ch);
 $arr=json_decode($json,1);
 //得到 用户资料
 var_dump($arr);


 }
 }

--------------更新thinkphp实测可用----------

public function wxlogin(){
 //-------配置
 $AppID = 'wxa2266485c3d7a39**';
 $AppSecret = '14576858e0f0906dc9819ed1f7d0ba6*';
 $callback  =  'http://***rcetimes.com/home/index/weixin'; //回调地址
 //微信登录
 session_start();
 //-------生成唯一随机串防CSRF攻击
 $state  = md5(uniqid(rand(), TRUE));
 $_SESSION["wx_state"]    =   $state; //存到SESSION
 $callback = urlencode($callback);
 $wxurl = "https://open.weixin.qq.com/connect/qrconnect?appid=".$AppID."&redirect_uri={$callback}&response_type=code&scope=snsapi_login&state={$state}#wechat_redirect";
 header("Location: $wxurl");

}

public function weixin(){
 if($_GET['state']!=$_SESSION["wx_state"]){
 exit("5001");
 }
 $AppID = 'wxa2266485c3d7a39*';
 $AppSecret = '14576858e0f0906dc9819ed1f7d0ba6*';
 $url='https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$AppID.'&secret='.$AppSecret.'&code='.$_GET['code'].'&grant_type=authorization_code';
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
 curl_setopt($ch, CURLOPT_URL, $url);
 $json =  curl_exec($ch);
 curl_close($ch);
 $arr=json_decode($json,1);
 //得到 access_token 与 openid
 print_r($arr);
 $url='https://api.weixin.qq.com/sns/userinfo?access_token='.$arr['access_token'].'&openid='.$arr['openid'].'&lang=zh_CN';
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
 curl_setopt($ch, CURLOPT_URL, $url);
 $json =  curl_exec($ch);
 curl_close($ch);
 $arr=json_decode($json,1);
 //得到 用户资料
 print_r($arr);

}

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