RewriteEngine On
RewriteBase /
 
RewriteCond %{QUERY_STRING} ^(.*)/$
RewriteRule ^(.*)$ /$1?%1 [R=301,L]
 
RewriteRule ^(.*)/$ /$1 [R=301,L]

DefaultType text/html
DirectoryIndex index.php
ErrorDocument 404 /404.php
RewriteEngine On
RewriteCond %{QUERY_STRING} ^(.+)$
RewriteRule ^(.*)$ $1@%1? [L]

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.*)$ /$1.php [L]

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME}.css -f
RewriteRule ^(.*)$ /$1.css [L]

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME}.js -f
RewriteRule ^(.*)$ /$1.js [L]