Aşağıda vereceğim kodu bir dene dostum

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} !^www.site.com/deneme1.php$ [NC]
RewriteRule ^(.*)$ http://www.site.com/deneme.php/$1 [L,R=301]
</IfModule>