简单的 PHP 控制器,这段代码有问题吗?
我正在尝试为一个小站点构建一个非常简单的 php 控制器页面。这是我到目前为止所拥有的。看起来效果不错。我这样做可能会遗漏任何问题吗?
$page = $_GET['p'];
switch ($page)
{
case "":
ob_start();
include "inc/home.php";
$content = ob_get_contents();
ob_end_clean();
break;
case $page:
$page = str_replace("/", "", $page);
if (file_exists("inc/".$page.".php"))
{
ob_start();
include "inc/".$page.".php";
$content = ob_get_contents();
ob_end_clean();
}
else
include "inc/404.php";
break;
}
include("inc/header.php");
echo $content;
include("inc/footer.php");
更新:这是基于注释的最终代码,效果很好。
<?php
$page = (isset( $_GET['p']) && !empty($_GET['p'])) ? $_GET['p'] : 'home';
if( preg_match( '/[^a-z]/i', $page))
{
$page = '404';
}
if( !file_exists( "inc/".$page.".php"))
{
$page = '404';
}
ob_start();
include("inc/header.php");
include("inc/".$page.".php");
include("inc/footer.php");
?>
I'm trying to build a really simple php controller page for a small site. Here is what I have so far. It seems to work well. Are there any issues I might be missing with doing it this way?
$page = $_GET['p'];
switch ($page)
{
case "":
ob_start();
include "inc/home.php";
$content = ob_get_contents();
ob_end_clean();
break;
case $page:
$page = str_replace("/", "", $page);
if (file_exists("inc/".$page.".php"))
{
ob_start();
include "inc/".$page.".php";
$content = ob_get_contents();
ob_end_clean();
}
else
include "inc/404.php";
break;
}
include("inc/header.php");
echo $content;
include("inc/footer.php");
UPDATE: Here is the final code based on comments that works well.
<?php
$page = (isset( $_GET['p']) && !empty($_GET['p'])) ? $_GET['p'] : 'home';
if( preg_match( '/[^a-z]/i', $page))
{
$page = '404';
}
if( !file_exists( "inc/".$page.".php"))
{
$page = '404';
}
ob_start();
include("inc/header.php");
include("inc/".$page.".php");
include("inc/footer.php");
?>
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您的整个脚本可以重写如下:
但是,这也不再容易受到本地文件包含的影响,因为
$page
仅限于字母字符,如果提交了其他内容,脚本将显示 404 页面。它也更高效,因为它不使用输出缓冲。
Your entire script can be rewritten as follows:
However, this is also no longer susceptible to Local File Inclusion, as
$page
is restricted to only alphabetic characters, and the script will show the 404 page if anything else is submitted.It's also more efficient as its not using output buffering.