微信公眾號(hào)實(shí)現(xiàn)掃碼獲取微信用戶信息（網(wǎng)頁授權(quán)）

$url ="http://www.baidu.com";
$level=3;
$size=4;
Vendor('phpqrcode.phpqrcode'); //引入插件
$errorCorrectionLevel = intval($level) ;//容錯(cuò)級(jí)別
$matrixPointSize = intval($size);//生成圖片大小
//生成二維碼圖片
$object = new \QRcode(); 
$path = "Public/ER/1.png"; //本地文件存儲(chǔ)路徑
$object->png($url, $path, $errorCorrectionLevel, $matrixPointSize, 2);

$tid = 0; //傳值的參數(shù)
$level=3;
$size=4;
Vendor('phpqrcode.phpqrcode');
$errorCorrectionLevel = intval($level) ;//容錯(cuò)級(jí)別
$matrixPointSize = intval($size);//生成圖片大小
//生成二維碼圖片
$object = new \QRcode();
$path = "Public/ER/" . $tid . ".png"; //本地文件存儲(chǔ)路徑
$object->png($url, $path, $errorCorrectionLevel, $matrixPointSize, 2);
$appid='******'; //公眾號(hào)唯一標(biāo)識(shí)
$redirect_uri = urlencode ( 'http://www.****.net/index.php/Admin/Sindex/getUserInfo?id='.$tid ); //這個(gè)是設(shè)置參數(shù)和授權(quán)后重定向的回調(diào)鏈接地址
//snsapi_userinfo彈出授權(quán)頁面，可通過openid拿到昵稱、性別、所在地 snsapi_base ，不彈出授權(quán)頁面，直接跳轉(zhuǎn)，只能獲取用戶openid　
$url ="https://open.weixin.qq.com/connect/oauth2/authorize?appid=$appidredirect_uri=$redirect_uriresponse_type=codescope=snsapi_userinfostate=1#wechat_redirect"; 

function getJson($url){
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); 
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 $output = curl_exec($ch);
 curl_close($ch);
 return json_decode($output, true);
}

public function getUserInfo()
{
 $appid = "*****"; //公眾號(hào)唯一標(biāo)識(shí)
 $secret = "*****"; //應(yīng)用秘鑰
 //$code是回調(diào)的時(shí)候地址上帶的 只需要get方式接收就可以了
 $code = $_GET["code"]; 
 //獲取傳過來的值
 $htjid = $_GET["id"];
 //第一步:取得openid
 $oauth2Url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appidsecret=$secretcode=$codegrant_type=authorization_code";
 $oauth2 = $this->getJson($oauth2Url);
 //第二步:根據(jù)全局access_token和openid查詢用戶信息 
 $access_token = $oauth2["access_token"]; 
 $openid = $oauth2['openid']; 
 $get_user_info_url = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_tokenopenid=$openidlang=zh_CN";
 $userinfo = $this->getJson($get_user_info_url);
 //寫入數(shù)據(jù)庫微信用戶
 M()->startTrans();//開啟事務(wù)
 $n = M("zp_user"); //寫入的表
 $openid = $data['openid'] = $userinfo['openid']; //微信用戶openid
 $data['sex'] = $userinfo['sex']; //性別 
 $data['headimgurl'] = $userinfo['headimgurl']; //頭像
 $data['province'] = $userinfo['province']; //地區(qū)sheng
 $data['city'] = $userinfo['city']; //地區(qū)shi
 $data['subscribe_time'] = time(); //時(shí)間
 $data['qr_scene'] = $htjid; //傳過的值
 $data['nickname'] = $userinfo['nickname']; //昵稱
 $z = $n->lock(true)->add($data);
 if(!$z)
 {
 M()->rollback();//回滾
 $this->error('添加錯(cuò)誤!');
 }else{
 M()->commit();//事務(wù)提交
 }
}