An .htaccess rewrite helper file that helps pass URI fragments as parameters to a single file

.htaccess

<IfModule mod_rewrite.c>
RewriteEngine on
#RewriteBase /

## If the request is for a valid directory
RewriteCond %{REQUEST_FILENAME} -d [OR]
## If the request is for a valid file
RewriteCond %{REQUEST_FILENAME} -f [OR]
## If the request is for a valid link
RewriteCond %{REQUEST_FILENAME} -l
## don't do anything
RewriteRule ^ - [L]

RewriteRule ^([^/]+)/([^/]+)/([^/]+)/([^/]+)?$ ./index.php?param1=$1&param2=$2&param3=$3&param4=$4 [L,QSA]

RewriteRule ^([^/]+)/([^/]+)/([^/]+)?$ ./index.php?param1=$1&param2=$2&param3=$3 [L,QSA]

RewriteRule ^([^/]+)/([^/]+)?$ ./index.php?param1=$1&param2=$2 [L,QSA]

RewriteRule ^([^/]+)?$ ./index.php?param1=$1 [L,QSA]

</IfModule>