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Editorial Team
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Asked: 2026-06-12T05:10:55+00:00

I am getting a 500 Internal Server Error from my linked CSS files etc

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I am getting a 500 Internal Server Error from my linked CSS files etc when I use this htaccess code.. Anyone know what might be the problem? I am not too fluent in htaccess yet.

Here is the code:

RewriteEngine On
RewriteBase /

RewriteRule ^(system|img|res) - [L]

RewriteRule ^picture/([^/]*)/?$ picture.php?id=$1 [L,QSA]

## The below code is something I found on the internet to remove the .php tag
# remove .php; use THE_REQUEST to prevent infinite loops
RewriteCond %{HTTP_HOST} ^www\.mywebsite\.com
RewriteCond %{THE_REQUEST} ^GET\ (.*)\.php\ HTTP
RewriteRule (.*)\.php$ $1 [R=301]

# remove index
RewriteRule (.*)index$ $1 [R=301]

# remove slash if not directory
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} /$
RewriteRule (.*)/ $1 [R=301]

# add .php to access file, but don't redirect
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteCond %{REQUEST_URI} !/$
RewriteRule (.*) $1\.php [L]

The URL is supposed to be: http://www.mysite.com/pictures/1 (id)

The id is always a number.

It does show me the page and I can echo the id, so that part is working, however it gives me a 500 error on linked files as mentioned above.

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1 Answer

  1. Editorial Team

    Not sure why it acts like that tho.. The CSS folder is in the same folder as the actual php file.

    You’ve linked to it using a relative URI:

    <link rel="stylesheet" type="text/css" media="all" href="./css/text.css" />

    e.g. the ./css/text.css, and while the css file may be in the same directory as picture.php file (which I assume is what is generating the content) but the browser is what actually makes the request for the CSS, not the picture.php script. The browser requests this URL http://www.mysite.com/picture/1, and the server internally rewrite the /picture/1 to /picture.php?id=1, the browser has no clue that’s happened. So it sees the base URI as /picture/. If the browser went directly to the php file: http://www.mysite.com/picture.php?id=1, the base URI would be / and the css would resolve just fine to /./css/text.css. But the /picture/1 request has a different base URI so the browser (with no clue that the base is different) blindly attempts to retrieve the css as /picture/./css/text.css, which fails because you have rules that mishandle that URI. Normally you’d just get a 404, but the rules you have after the picture rewrite mishandles the URI and returns a 500 server error.

    You can either add in your header:

    <base href="/">

    in the content generated by picture.php, or make the URI’s absolute:

    <link rel="stylesheet" type="text/css" media="all" href="/css/text.css" />
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