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<?php
/**
* @copyright (C)2016-2099 Hnaoyun Inc.
* @author XingMeng
* @email hnxsh@foxmail.com
* @date 2019年05月27日
* 微信网页授权
*/
namespace core\weixin;
use core\basic\Config;
class WxAccessToken
{
// 获取全局access_token
public static function get()
{
if (! self::check()) {
$appid = Config::get('weixin_appid');
$secret = Config::get('weixin_secret');
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $appid . "&secret=" . $secret;
$result = json_decode(get_url($url));
if (isset($result->errcode) && $result->errcode) {
error('获取微信AccessToken发生错误：' . $result->errmsg . '(' . $result->errcode . ')');
return false;
} else {
$data['weixin_access_token'] = $result->access_token;
$data['weixin_expires_in'] = $result->expires_in;
$data['weixin_timestamp'] = time();
Config::set(sha1('weixin_access_token'), $data); // 缓存数据
return $result->access_token;
}
} else {
return Config::get('weixin_access_token');
}
}
// 检查access_token是否可用
private static function check()
{
Config::assign(RUN_PATH . '/config/' . sha1('weixin_access_token') . '.php');
if (Config::get('weixin_access_token') && time() - Config::get('weixin_timestamp') < Config::get('weixin_expires_in')) {
return true;
} else {
return false;
}
}
}