如何在阿帕奇/ PHP获取实际请求的URL，如果不存在，用户会被重定向到404错误页面呢？ [英] How to fetch the actual request URL in Apache/PHP if it does not exist and user is redirected to 404 error page?

问题描述

我想获取客户端的请求的实际URL，我该怎么做呢？我的意思是，如果有人请求不存在一样， HTTP页面：//localhost/invalid.php ，我已设置404自定义错误文件 HTTP：//localhost/test.php ，那么我怎么知道什么是用户请求的实际URL

I want to fetch the actual URL of the request made by the client, how do I do that? I mean if someone requests a page that does not exists, like, http://localhost/invalid.php, and I have set 404 custom error file to http://localhost/test.php, then how do I get to know what was the actual URL requested by the user.

我在IIS7尝试这个。我已经设置了自定义错误页，以/test.php，每当用户请求一个URL不存在，我仍然可以访问使用$ _ SERVER的URL ['REQUEST_URI']在/test.php，并在浏览器的URL仍保持相同。

I have tried this in IIS7. I have set the Custom Error Page to /test.php, and whenever the user requests a URL which does not exist, I could still access that URL using $_SERVER['REQUEST_URI'] in /test.php and the URL in browsers still remains the same.

但我有问题，做同样的Apache中。我已经设置了自定义错误页，以/test.php但是当用户请求不存在的页面，将用户重定向到一个/test.php，我不能访问的用户请求的实际URL。我试过这个的print_r（$ _ SERVER），但没有找到实际的URL请求任何地方在 $ _ SERVER 数组。

But I am having problem doing the same in Apache. I have set the Custom Error Page to /test.php but when user requests a page which doesn't exist, the user is redirected to a /test.php and I cant access the actual URL which the user requested. I've tried this print_r($_SERVER) but did not find the actual request URL any where in the $_SERVER array.

推荐答案

我相信你可以通过做一个的RewriteCond ，而一个错误404。

I believe you could do it by using a RewriteCond rather that an error 404.

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ test.php?errpath=$1

如果该文件确实存在第一线检查。结果
第二路由客户端 test.php的。

The first line checks if the file actually exists.
The second routes the client to test.php.

然后在 test.php的你把这样的：

<?php
    if ($_GET['errpath'] == "" || $_GET['errpath'] == "/") {
        require("index.php");
    }
    else {
        echo "The url ".$_GET['errpath']." does not exist.";
    }
?>

这是检查是否 errpath 什么或只是一个斜杠（即客户端通常会表现出的index.php ），并且是这样的，需要它。否则，做任何你想做的404错误页面。

That checks if errpath is nothing or just a forward slash (meaning the client would normally be showed index.php), and is so, requires it. Otherwise do whatever you want for the 404 error page.

P.S。很抱歉，如果该解释似乎光顾，我只是恨它，当人们告诉我做什么，我不明白。我并不想这样做，其他任何人。

P.S. Sorry if the explanations seem patronizing, I just hate it when people tell me to do something and I don't understand. I don't want to do that to anyone else.

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