How do I make .htaccess work on the current directory and not subdirectories?

Question

I'm using mod rewrite to access my PHP files in the root directory of my website indirectly. Currently, I have something like this,

RewriteRule ^(blog|about|page3|etc)$ /$1.php [L]

But what I would like to use is

RewriteRule ^(.*)$ /$1.php [L]

So that I wouldn't have to update my .htaccess file whenever I wanna add a new page to my website. The problem with this however is that it affects my subdirectories too. Which makes CSS, javascript, images unaccessable because it redirects to "/dir/example.png.php".

So what is the best solution here?

Answer 1

Try this rule:

RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI}.php -f
RewriteRule .* $0.php [L]