php - 从变量末尾删除“/”

Question

谁能告诉我如何从变量末尾删除斜杠

在我的 index.php 中，我有以下内容：

$url=$_SERVER['REQUEST_URI'];
include_once "sites/$url.php";

我的问题是，如果我example.com/test/somefile/什么都没写，但如果我写example.com/test/somefile它就可以了

那么如果变量以斜杠结尾，有没有办法删除斜杠？

Answer 1

请不要这样做。

你依赖于你的用户是一个很好的两双鞋，而不是满足于请求。

结论：不要依赖浏览器请求在代码中包含文件

Answer 2

Try this

$url = rtrim($url, '/');

From PHP.net http://ua2.php.net/rtrim

> You can also specify the characters you want to strip, by means of the character_mask parameter. Simply list all characters that you want to be stripped. With .. you can specify a range of characters.

While this will solve your problem, please take a few minutes to consider the warnings posted in the comments and the other answer(s) regarding code injection since it is a very serious security issue.