这篇文章主要介绍的内容是关于PHP实现微信网页授权登陆，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
公司要求有微信授权，自己研究了下，框架是tp3.2.
官方开发文档地址
https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419316505&token=&lang=zh_CN；
1.识别浏览器，普通浏览器跳到登陆页面；微信打开的话，发起微信网页授权登陆，微信用户允许授权第三方应用后，微信会拉起应用或重定向到第三方网站，并且带上授权临时票据code参数；
2.通过code参数加上AppID和AppSecret等，通过API换取access_token；
3.通过access_token进行接口调用，获取用户基本数据资源或帮助用户实现基本操作。
<?php
namespace Home\Controller;
use Think\Controller;
class CommonController extends Controller {
/*
* 自动执行
*/
public function _initialize(){
//判断是否在微信打开
$ua = $_SERVER['HTTP_USER_AGENT'];
//MicroMessenger 是android/iphone版微信所带的
//Windows Phone 是winphone版微信带的 (这个标识会误伤winphone普通浏览器的访问)
if(strpos($ua, 'MicroMessenger') == false && strpos($ua, 'Windows Phone') == false){
//普通浏览器
if(!$_SESSION['username']) {
header('Location:xxx');
}
}else{
//微信浏览器
$users = M('User');
$appid = 'xxx';
$secret = 'xxx';
if(!$_SESSION['username']) {
//微信网页授权
$redirect_uri = urlencode ('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
$url ="https://open.weixin.qq.com/connect/oauth2/authorize?appid=$appid&redirect_uri=$redirect_uri&response_type=code&scope=snsapi_userinfo&state=1&connect_redirect=1#wechat_redirect";
header("Location:".$url);
$code = $_GET["code"];
//第一步:取得openid
$oauth2Url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appid&secret=$secret&code=$code&grant_type=authorization_code";
$oauth2 = $this->getJson($oauth2Url);
//第二步:根据全局access_token和openid查询用户信息
$access_token = $oauth2["access_token"];
$openid = $oauth2['openid'];
$get_user_info_url = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN";
$userinfo = $this->getJson($get_user_info_url);
//save用户信息
if($userinfo['openid']){
$username = $userinfo['openid'];
$nickname = $userinfo['nickname'];
$headimg = $userinfo['headimgurl'];
$province = $userinfo['province'];
$city = $userinfo['city'];
$sex = $userinfo['sex'];
$user = $users->where(array('username' => $username))->find();
if ($user) {
$users->where(array('username' => $username))->save(array('nickname' => $nickname, 'avatar' => $headimg, 'lasttime' => time()));
}else{
$users->add(array('username' => $username, 'nickname' => $nickname, 'avatar' => $headimg, 'province' => $province, 'city' => $city, 'gender' => $sex, 'regtime' => time(), 'lasttime' => time()));
// $data = array('username' => $username, 'nickname' => $nickname, 'avatar' => $headimg, 'province' => $province, 'city' => $city, 'gender' => $sex, 'regtime' => time(), 'lasttime' => time());
}
$_SESSION['username'] = $username;
if($user['tel'] == NULL){
//如果用户手机号为空的话跳转到绑定手机号页面
header('Location:xxx');
}
}
}else{
$user = D('User')->getUserInfo(); //getUserInfo()是model根据session('username')获取用户数据的方法
if($user['tel'] == NULL){
header('Location:xxx');
}
}
//获取接口调用凭证access_token
$accessurl = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$appid.'&secret='.$secret;
$access_token = S('access_token');
if(!$access_token){
$access = $this->getJson($accessurl);
if(!empty($access['access_token'])){
S('access_token',$access['access_token'],$access['expires_in']);
}
}
//分享
/*$share = new WechatShare($appid, $_SESSION['username']);
$this->shareScript = $share->getSgin($access_token);
$this->assign('shareScript', $this->shareScript);
$this->assign('sharewechaid', $_SESSION['username']);
if($_GET['sharewechaid']){
$this->assign('getsharewechaid', $_GET['sharewechaid']);
}*/
}
}
public function getJson($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);
}
}登录后复制
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