微信网页第三方登陆 获取用户信息 代码

1.登陆的html页面代码

<a href="weixin.redirect_uri">微信登陆</a>

2.跳转到的控制器方法代码

CJUL是常量，就是你在开放平台上注册的重定向网址

跳换到后重定向到的地址是微信的一个重定向地址

https://open.weixin.qq.com/connect/qrconnect?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect

带了你在开放平台上注册的网址redirect_uri和appid 并且scope为snsapi_login

参数	是否必须	说明
appid	是	应用唯一标识
redirect_uri	是	重定向地址，需要进行UrlEncode
response_type	是	填code
scope	是	应用授权作用域，拥有多个作用域用逗号（,）分隔，网页应用目前仅填写snsapi_login即可
state	否	用于保持请求和回调的状态，授权请求后原样带回给第三方。该参数可用于防止csrf攻击（跨站请求伪造攻击），建议第三方带上该参数，可设置为简单的随机数加session进行校验

class  PhoneController extends CommonController{

//加载首页
public function Index(){

//通过授权跳转网页进入
if(isset($_GET['code'])){

$code = $_GET['code'];

//通过code换取网页授权access_token
$access_token = $this->get_code_access_token($code);

//检验授权凭证（access_token）是否有效
$data = $this->checkAvail($access_token['access_token'],$access_token['openid']);

if($data['errcode'] != '0' || $data['error_msg'] != 'ok'){

//刷新access_token
$access_token = $this->refresh_access_token($access_token['refresh_token']);

}

//得到拉取用户信息(需scope为 snsapi_userinfo)
$userinfo = $this->get_user_info($access_token['access_token'],$access_token['openid']);

require 'view/index.html';

}elseif(isset($_GET['page'])){

//网页端入口
require 'view/index.html';

}else{

echo "NO CODE";
}

}

//跳转到微信的认证页
public function redirect_uri(){
$url =  $this->get_authorize_url(CJURL,'1');

header('location:'.$url);
}
}

3.调用的底层代码

<?php

class CommonController{

//http get
public function httpRequest($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);

if($output == false){
return 'curl error:'.curl_error($ch);
}

curl_close($ch);

return $output;
}

//curl获取参数
//https 中的 get  和  post
public function https_request($url,$data=null){

$curl = curl_init();

curl_setopt($curl,CURLOPT_URL,$url);

curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,false);

//不为空，使用post传参数，否则使用get
if($data){

curl_setopt($curl,CURLOPT_POST,1);
curl_setopt($curl,CURLOPT_POSTFIELDS,$data);

}

curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);

$output = curl_exec($curl);
curl_close($curl);

return $output;
}

//获取接口票据access_token
public function get_token(){

$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".APPID."&secret=".APPSECRET;

$json = $this->https_request($url);

$arr = json_decode($json,true);

return $arr['access_token'];
}

/*获取授权后重定向的回调链接地址，请使用urlencode对链接进行处理
* @param string $redirect_uri
* @param string $state
**/
public function get_authorize_url($redirect_uri = '', $state = ''){

$redirect_uri = urlencode($redirect_uri);
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".APPID."&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_base&state={$state}#wechat_redirect";
}

/**
*加载网页授权通过code获取access_token
*
* @param string $code
**/
public function get_code_access_token($code){

//第一步：用户同意授权，获取code
// 第二步：通过code换取网页授权access_token,与接口票据不一样
$access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".APPID."&secret=".APPSECRET."&code={$code}&grant_type=authorization_code";

$access_token = $this->https_request($access_token_url);

$arr = json_decode($access_token,true);

return $arr;
}

/**
* 刷新access_token（如果需要）
*
**/
public function refresh_access_token($refresh_token){

//三步：刷新access_token（如果需要）
$refresh_url = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=".APPID."&grant_type=refresh_token&refresh_token={$refresh_token}";

$access_token = $this->https_request($refresh_url);

return json_decode($access_token,true);

}

/**
* 获取授权后的微信用户信息
*
* @param string $access_token
* @param string $open_id
**/
public function get_user_info($access_token = '', $open_id = ''){

// 第四步：拉取用户信息(需scope为 snsapi_userinfo)

if($access_token && $open_id){

$info_url = "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$open_id}&lang=zh_CN";

$info_data = $this->https_request($info_url);

return json_decode($info_data, TRUE);

}

return FALSE;
}

/**
*检验授权凭证（access_token）是否有效
* @param string $access_token
* @param string $open_id
**/
public function checkAvail($access_token='',$openid=''){

if($access_token && $open_id){

$avail_url = "https://api.weixin.qq.com/sns/auth?access_token={$access_token}&openid={$openid}";

$avail_data = $this->https_request($avail_url);

return json_decode($avail_data, TRUE);
}

return FALSE;
}

//获取自定义菜单创建接口
public function setcustomMenu(){

$access_token = $this->get_token();

$menuurl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token={$access_token}";

$jsonmenu = '{
"button":[
{
"type":"view",
"name":"抽奖",
"url":"http://akira.weixin-sandbox.ciicgat.com/index.php?c=Phone&a=Index&page=Page"
},
{
"type":"click",
"name":"赞一下",
"key":"点赞"
},
{
"name":"上网",
"sub_button":[
{
"type":"view",
"name":"搜搜",
"url":"http://www.soso.com/"
},
{
"type":"view",
"name":"腾讯",
"url":"http://v.qq.com/"
},
{
"type":"view",
"name":"百度",
"url":"http://www.baidu.com/"
}]
}]
}';

//在直接访问接口的时候已经改变了微站上面的信息
$result = $this->https_request($menuurl,$jsonmenu);

var_dump($result);
}

/**
*openid
*用户说的内容
*获取和你聊天的用户的基本信息形成列表
**/
public  function  getUserInfo($openid,$text){

$access_token = $this->get_token();
//http请求方式:GET
$url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token={$access_token}&openid={$openid}&lang=zh_CN";
//请求获取用户信息的接口，返回这个openid对应的用户信息，json格式
$jsoninfo = $this->httpRequest($url);
//将json转为php数组
$user = json_decode($jsoninfo,true);

$this->insertuser($user);

$this->insertmessage($openid,$text,0,'text');
}

/*
*将用户的数据写入数据库
*/
public function insertuser($arr){

$user = new Model('user');

$user->ctime = $arr['subscribe_time'];

$user->add($arr);
}

/**
*第一个参数: $openid 用户的编号
*第二个参数: $text 用户消息和公众号数据标记  1 表示公众号 0 表示用户消息
**/
public function insertmessage($openid,$text,$who,$mtype="text"){

$message = new Model('message');

$message->openid = $openid;
$message->mess = $text;
$message->who = $who;
$message->utime = time();
$message->mtype = $mtype;

$message->add();

$sql = "upadte user set utime=".time()." where openid = '{$openid}'";

$user = new Model('user');
$user->query($sql);
}

//获取带参数的二维码的过程包括两步，首先创建二维码ticket，然后凭借ticket到指定URL换取二维码

/**
*微信获取二维码ticket
*@param string $type
*@param string $time
**/
public function getTicket($type="temporary",$time="604800"){

/*
http请求方式: POST
URL: https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=TOKEN POST数据格式：json

临时二维码请求说明
POST数据例子：{"expire_seconds": 604800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": 123}}}

永久二维码请求说明
POST数据例子：{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": 123}}}
或者也可以使用以下POST数据创建字符串形式的二维码参数：
{"action_name": "QR_LIMIT_STR_SCENE", "action_info": {"scene": {"scene_str": "123"}}}
*/

if((int)($time) > 604800){
$time = 604800;
}

//获取token
$token = $this->get_token();

//临时
$temporary_qrcode = '{"expire_seconds": '.$time.', "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": 123}}}';

//永久
$permanent_qrcode = '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": 123}}}';

//永久字符串
$permanent_str_qrcode = '{"action_name": "QR_LIMIT_STR_SCENE", "action_info": {"scene": {"scene_str": 123}}}';

//获取类型判定
$code = $type.'_qrcode';
$qrcode = $$code;

//请求ticket
$ticket_url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={$token}";

$ticket = $this->https_request($ticket_url,$qrcode);

return $ticket;
}

/**
*凭借ticket到指定URL换取二维码
**/
public function getQrcode(){

//本接口无须登录态即可调用    TICKET进行UrlEncode
// HTTP GET请求（请使用https协议）
// https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=TICKET $ticket = json_decode($this->getTicket(),true);

$qrcode_url = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=".urlencode($ticket['ticket']);

echo  $qrcode_url;

$qrcode = $this->https_request($qrcode_url);

// header("");
}

/*
* 微信不接收\u***格式的json内容需要对json字符串处理
* 仅支持发送text消息，其他类型消息自己添加代码
* @param string msgtype
* @param array
* @return string
*/
function my_json_encode($type, $p){

if (PHP_VERSION >= '5.4'){

$str = json_encode($p, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
}
else{

switch ($type){

case 'text':
isset($p['text']['content']) && ($p['text']['content'] = urlencode($p['text']['content']));
break;
}
$str = urldecode(json_encode($p));
}
return $str;
}

//中文分词函数,只要传一句话，就可以分词出来
public function fci($text){
$text = iconv('UTF-8','GBK//IGNORE',$text);
$text = urlencode($text);
$result = file_get_contents("http://akira.weixin-sandbox.ciicgat.com/index.php?w=".$text);
$result = iconv("GBK","UTF-8//IGNORE",$result);
return explode(" ",$result);
}

}

?>