.htaccess mod_rewrite with 3 directories levels - regex

Question

How can I manage 3 subdirectories levels on Htaccess?
Explanation:
http://example.com/category1/
http://example.com/category2/
http://example.com/category3/
RewriteRule to *category.php?category=$1*
http://example.com/category1/type1/
http://example.com/category2/type7/
http://example.com/category3/type8/
RewriteRule to *type.php?category=$1&type=$2*
http://example.com/category1/type1/company3/
http://example.com/category2/type7/company4/
http://example.com/category3/type8/company9/
RewriteRule to *company.php?category=$1&type=$2&company=$3*
.htaccess file is located in initial root folder (where index.php)
Is the next the best way?
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^/.]+)(?:/)?$ /category.php?category=$1 [L]
RewriteRule ^([^/.]+)/([^/.]+)(?:/)?$ /type.php?category=$1&type=$2 [L]
RewriteRule ^([^/.]+)/([^/.]+)/([^/.]+)(?:/.*)?$ /company.php?category=$1&type=$2&company=$3 [L]

Answer 1

You are fairly close. Just note that RewriteCond is applicable to next immediate RewriteRule only so you check of !-f will only be used for first rule. You can have a separate rule to discard all requests that are for existing files and directories.
RewriteEngine On
# skip all files and directories from rewrite rules below
RewriteCond %{REQUEST_FILENAME} -d [OR]
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^ - [L]
RewriteRule ^([\w-]+)/?$ category.php?category=$1 [L,QSA]
RewriteRule ^([\w-]+)/([\w-]+)/?$ type.php?category=$1&type=$2 [L,QSA]
RewriteRule ^([\w-]+)/([\w-]+)/([\w-]+)/?$ company.php?category=$1&type=$2&company=$3 [L,QSA]