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php 微信网页授权代码,php 微信公众平台OAuth2.0网页授权，获取用户信息代码类封装demo...

news 来源：原创 2024/5/4 9:02:30

* 获取微信用户信息

* @author: Lucky hypo*/

classGetWxData{private $appid = 'xxx';private $appsecret = 'xxxxxx';/**

* 1、获取微信用户信息，判断有没有code，有使用code换取access_token，没有去获取code。

* @return array 微信用户信息数组*/

public functionget_user_all(){if (!isset($_GET['code'])){//没有code，去微信接口获取code码

$callback = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];//微信服务器回调url，这里是本页url

$this->get_code($callback);

}else {//获取code后跳转回来到这里了

$code = $_GET['code'];$data = $this->get_access_token($code);//获取网页授权access_token和用户openid

$data_all = $this->get_user_info($data['access_token'],$data['openid']);//获取微信用户信息

return $data_all;

}

}/**

* 2、用户授权并获取code

* @param string $callback 微信服务器回调链接url*/

private function get_code($callback){$appid = $this->appid;$scope = 'snsapi_userinfo';$state = md5(uniqid(rand(), TRUE));//唯一ID标识符绝对不会重复

$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . $appid . '&redirect_uri=' . urlencode($callback) . '&response_type=code&scope=' . $scope . '&state=' . $state . '#wechat_redirect';header("Location:$url");

}/**

* 3、使用code换取access_token

* @param string 用于换取access_token的code，微信提供

* @return array access_token和用户openid数组*/

private function get_access_token($code){$access_token_file = './access_token.txt';$get_data_status = false;$data = file_get_contents($access_token_file);if($data){$data = json_decode($data,true);$expire_time = isset($data['expire_time'])?$data['expire_time']:'0';if(time() > ($expire_time - 600)){$get_data_status = true;

}

}else{$get_data_status = true;

}if($get_data_status == true){$appid = $this->appid;$appsecret = $this->appsecret;$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . $appid . '&secret=' . $appsecret . '&code=' . $code . '&grant_type=authorization_code';$user = json_decode(file_get_contents($url));if (isset($user->errcode)) {echo 'error:' . $user->errcode.'

msg :' . $user->errmsg;exit;

}$data = json_decode(json_encode($user),true);//返回的json数组转换成array数组

$data['expire_time'] = time()+$data['expires_in'];file_put_contents($access_token_file,json_encode($data));

}return $data;

}/**

* 4、使用access_token获取用户信息

* @param string access_token

* @param string 用户的openid

* @return array 用户信息数组*/

private function get_user_info($access_token,$openid){$url = 'https://api.weixin.qq.com/sns/userinfo?access_token=' . $access_token . '&openid=' . $openid . '&lang=zh_CN';$user = json_decode(file_get_contents($url));if (isset($user->errcode)) {echo 'error:' . $user->errcode.'

msg :' . $user->errmsg;exit;

}$data = json_decode(json_encode($user),true);//返回的json数组转换成array数组

return $data;

}//对外开放，获取access_token

public functionget_access_token_open(){if (!isset($_GET['code'])){//没有code，去微信接口获取code码

$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443) ? "https://": "http://";//$callback = $protocol.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];//微信服务器回调url，这里是本页url

$callback = $protocol.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];//微信服务器回调url，这里是本页url

$this->get_code($callback);

}else {//获取code后跳转回来到这里了

$code = $_GET['code'];$data = $this->get_access_token($code);//获取网页授权access_token和用户openid

return $data;

}

}//使用方法：

$getWxData = newGetWxData();if(isset($_GET['model']) && $_GET['model'] == 'get_access_token'){$data = $getWxData->get_access_token_open();echo(json_encode($data));exit();

}else{$data = $getWxData->get_user_all();echo '