htaccess 404重定向不起作用

Question

I am trying to setup a custom 404 page for my website using: ErrorDocument 404 /404.html but when I add this, going to domain.com/dslkjflsdkjflskdjf doesn't redirect to the 404 page. Instead, it redirects to my homepage where mostly everything on the page is broken.

I'm wondering if this mod_rewrite.c module is the cause of this, I've tried modifying it (taking L out, adding the redirect inside the module, etc) but no luck.

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^(.*)$ /index.php?url=$1 [QSA,L]
</IfModule>

Answer 1

I'm not sure about this but I think your server won't recognize a 404 error because every request is redirected to your index.php. You have to determine in the index.php if there is a 404 error and send the header with the header() function.