王威学php、微信开发、laravel之类的，我都是野路子，没什么系统，所以很多时候去改别人开发好的模块，非常为难，还不如自己去折腾，因此，折腾出一个批代码，做个记录，当然，其实下面这几个函数也和laravel没啥关系，纯粹的php代码
首先写一个用于调用的公共类 WechatClass.php
<?php
namespace App\Myclass;
use App\Models\Access_token;
use App\Models\Wechat;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
class WechatClass
{
public static function curlGet($url) {
$ch = curl_init();
$headers[] = 'Accept-Charset:utf-8';
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
public static function curlPost($url, $data) {
$ch = curl_init();
$headers[] = 'Accept-Charset: utf-8';
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
curl_close($ch);
$result = json_decode($result, true);
if (isset($result['errcode'])) {
return array('errcode' => $result['errcode']);
} else {
$result['errcode'] = 0;
return $result;
}
}
public static function checkSignature($signature, $timestamp, $nonce)
{
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr, SORT_STRING);
$tmpStr = implode($tmpArr);
$tmpStr = sha1($tmpStr);
if ($tmpStr == $signature) {
return true;
} else {
return false;
}
}
public static function getUserinfo($openid, $access_token) {
if ($access_token && $openid) {
// $url = "https://api.weixin.qq.com/sns/userinfo?access_token=" . $access_token . "&openid=" . $openid . "&lang=zh_CN";
$url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=$access_token&openid=$openid&lang=zh_CN";
$ch = curl_init();
curl_setopt($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 static function getAccessToken() {
$access_token=Access_token::orderBy('id','desc')->first();
if($access_token){
if(time() - $access_token->time < 7100){
//dd($access_token->access_token);
return $access_token->access_token;
}
}
$appid = env('WECHAT_OFFICIAL_ACCOUNT_APPID');
$secret = env('WECHAT_OFFICIAL_ACCOUNT_SECRET');
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $appid . "&secret=" . $secret;
$ch = curl_init();
curl_setopt($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);
$result = json_decode($output, true);
DB::insert('insert into access_token (access_token,time) VALUES (?,?)',[$result['access_token'],time()]);
return $result['access_token'];
}
public static function get_qrcode($scene_id,$logkey){
$access_token = self::getAccessToken();
$qrcode_url = 'https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=' . $access_token;
$paras = array("scene_id"=>$scene_id,"logkey"=>$logkey);
$post_data = array();
$post_data['expire_seconds'] = 3600 * 24; //有效时间
$post_data['action_name'] = 'QR_STR_SCENE';//字符串 QR_SCENE 数字
$post_data['action_info']['scene']['scene_str'] = json_encode($paras); //传参二维码主键id，微信端可获取
$json = self::curlPost($qrcode_url, json_encode($post_data));
if (!$json['errcode']) {
$ticket = $json['ticket'];
$ticket_img = 'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=' . urlencode($ticket);
$png = fopen($ticket_img,'r');
file_put_contents(dirname(dirname(dirname(__FILE__))).'/public/uploads/qrcode/'.$logkey.'.png',$png);
return $ticket_img;
} else {
return false;
}
}
}
然后再在controller里面调用这个类
<?php
namespace App\Http\Controllers;
use App\Models\User;
use App\Models\Wechat;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Cookie;
use Illuminate\Support\Facades\DB;
use Auth;
use Illuminate\Support\Str;
use App\Myclass\WechatClass;
define('TOKEN', 'weixin');
class WechatController extends Controller
{
///生成带参数的登录二维码
public function index(){
$logkey = Str::random(30);
DB::insert('insert into wechat (time,logkey,log_type) VALUES (?,?,?)',[time(),$logkey,'login']);
$scene_id=1;
$ticket_img=WechatClass::get_qrcode($scene_id,$logkey);
if ($ticket_img) {
$title='微信扫码测试';
return view('user.wechat',compact('title','ticket_img','logkey'));
} else {
return 'error';
}
}
///用于微信回调url
public function callback(Request $request){
$signature = $request->input('signature');
$timestamp = $request->input('timestamp');
$nonce = $request->input('nonce');
$echoStr = $request->input('echostr');
//if (WechatClass::checkSignature($signature, $timestamp, $nonce)) {
$data = $request->all();
if(isset($data['openid'])){
$openid = $data['openid'];
$access_token = WechatClass::getAccessToken();
//return $access_token;
$u = WechatClass::getUserinfo($openid, $access_token);
$postStr = file_get_contents('php://input');
$data = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
if($data->Event) {
$FromUserName = $data->FromUserName; //openid
$EventKey = $data->EventKey; //带前缀的Key
$EventKey = ltrim($EventKey, 'qrscene_'); //去掉前缀就是我们传递给微信的Key
$EventKey=json_decode($EventKey,true);
$logkey=$EventKey['logkey'];
$user = Wechat::where('logkey',$logkey)->first();
$user->subscribe=$u['subscribe'];
$user->openid=$u['openid'];
$user->nickname=$u['nickname'];
$user->sex=$u['sex'];
$user->city=$u['city'];
$user->province=$u['province'];
$user->country=$u['country'];
$user->headimgurl=$u['headimgurl'];
$user->update();
unlink(dirname(dirname(dirname(dirname(__FILE__)))).'/public/uploads/qrcode/'.$logkey.'.png');
}
}
ob_end_clean(); //必须清空缓冲区
return $echoStr;
//} else {
// return 'Token verification failed.';
// }
}
///检查登录状态
public function check_auth(Request $request){
$logkey=$request->input('key');
$wechat = Wechat::where('logkey',$logkey)->first();
//dd($wechat->openid);
if($wechat->openid){
$user = User::where('openid',$wechat->openid)->first();
if(!$user){
$array=[
'name'=>$wechat->nickname,
'openid'=>$wechat->openid,
'created_at'=>date('Y-m-d H:i:s'),
'updated_at'=>date('Y-m-d H:i:s'),
'password'=>bcrypt('power123456'),
'log_type'=>$wechat->log_type,
'img'=>$wechat->headimgurl
];
$result = User::create($array);
}else{
$user->lasttime=date('Y-m-d H:i:s');
$user->log_type=$wechat->log_type;
$user->img=$wechat->headimgurl;
$user->update();
$result = $user;
}
//Cookie::queue('img',urldecode($wechat->headimgurl),60*24);
Auth::login($result, true);
//$wechat->delete();
return 1;
}
else{
return 0;
}
}
}
记得将类文件加入composer中
autoload: {
"classmap": [
"database",
"app/Myclass/WechatClass.php"
],
"psr-4": {
"App\\": "app/"
}
},
然后运行以下命令
composer dumpautoload
注意：
1、callback的路由要用any，另外在Middleware/VerifyCsrfToken.php中将改一下post验证例外
protected $except = [
'wechat',
'callback',
];
2、blade文件中这样写
@extends('user.header')
@section('content')
<script src="{{asset('layouts/common/jquery.js')}}"></script>
<img src="{{$ticket_img}}" alt="" width="200px">
<script language="javascript" type="text/javascript">
$(document).ready(function(e) {
getRemote();
});
function getRemote () {
$.getJSON("{{url('check_auth/?key='.$logkey)}}", function (data) {
console.log(data);
// console.log(result);
if(data===1){
location.href ="{{url('user/profile')}}";
}
})
setTimeout(getRemote,2000);
}
</script>
@endsection
