vendor/topthink/framework/src/helper.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2021 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);

//------------------------
// ThinkPHP 助手函数
//-------------------------

use think\App;
use think\Container;
use think\exception\HttpException;
use think\exception\HttpResponseException;
use think\facade\Cache;
use think\facade\Config;
use think\facade\Cookie;
use think\facade\Env;
use think\facade\Event;
use think\facade\Lang;
use think\facade\Log;
use think\facade\Request;
use think\facade\Route;
use think\facade\Session;
use think\Response;
use think\response\File;
use think\response\Json;
use think\response\Jsonp;
use think\response\Redirect;
use think\response\View;
use think\response\Xml;
use think\route\Url as UrlBuild;
use think\Validate;

if (!function_exists('abort')) {
    /**
     * 抛出HTTP异常
     * @param integer|Response $code    状态码 或者 Response对象实例
     * @param string           $message 错误信息
     * @param array            $header  参数
     */
    function abort($code, string $message = '', array $header = [])
    {
        if ($code instanceof Response) {
            throw new HttpResponseException($code);
        } else {
            throw new HttpException($code, $message, null, $header);
        }
    }
}

if (!function_exists('app')) {
    /**
     * 快速获取容器中的实例 支持依赖注入