微信oauth2授权获得用户信息

<?php

session_start();

header("Content-type: text/html; charset=utf-8");

$home = 'index.php';

class db{

    private $host;

    private $user;

    private $pass;

    private $database;

    private $charset;

    function __construct($host,$user,$pass,$database,$charset){

        $this->host=$host;

        $this->user=$user;

        $this->pass=$pass;

        $this->database=$database;

        $this->charset=$charset;

        $this->connect();

    }

    function connect(){

        mysql_connect($this->host,$this->user,$this->pass) or die ("连接数据库服务器失败!");

        mysql_select_db($this->database) or die ("连接数据库失败!");

        mysql_query("set names $this->charset");        

    }

    function select($sql){

        $select=mysql_query($sql);

        $rows = '';

        while($row = mysql_fetch_array($select, MYSQL_ASSOC)) {

        $rows[] = $row;

        }

        return $rows;

    }

    function insert($tab,$col,$value){

        mysql_query("INSERT INTO $tab($col)values($value)");

        return mysql_insert_id();

    }

    function update($tab,$col,$new_value,$colm,$value){

        mysql_query("UPDATE $tab SET $col=$new_value where $colm=$value");    

    }

    function delete($tab,$col,$value){

      mysql_query("DELETE FROM $tab where $col=$value");

    }

    function close(){

    mysql_close();

    }

}

$db = new db('127.0.0.1','root','lizhifeng','jinba','utf8');

//通过oauth2授权获取用户详细信息

//$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx954b290311defa52&redirect_uri=http://jinba2.emailcar.net&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect';

if(!$_SESSION['userid']){

if (isset($_GET['code'])){

$code = $_GET['code'];

$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=wx954b290311defa52&secret=299a1a9ba0db6d1b09266842de62079c&code='.$code.'&grant_type=authorization_code';

$json = file_get_contents($url); 

$arr = json_decode($json,true);

$token = $arr['access_token'];  

$openid = $arr['openid'];

$url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$token.'&openid='.$openid.'&lang=zh_CN'; 

$json = file_get_contents($url); 

$arr = json_decode($json,true); 

$name = $arr['nickname'];

$imgURL = $arr['headimgurl'];

$sex = $arr['sex'];

$province = $arr['province'];

$city= $arr['city'];

$country= $arr['country'];

$result = $db->select('select * from member where openid = "'.$openid.'"');

if($result){

$userid = $result[0]['id'];

$_SESSION['userid'] = $userid;

}else{

if($openid){

$userid = $db->insert('member','openid,nickname,headimgurl,sex,city,country,province,create_time','"'.$openid.'","'.$name.'","'.$imgURL.'","'.$sex.'","'.$city.'","'.$country.'","'.$province.'","'.time().'"');

$_SESSION['userid'] = $userid;

}else{

header("Location: $url"); 

}

}

}else{

    header("Location: $url"); 

}

}

$userid = $userid?$userid:$_SESSION['userid'];

来自为知笔记(Wiz)