how define in htacess a link that don´t exist?

hi,
i have this domain for example: mydomain.com
and i want when i enter this url in browser:

mydomain.com/test

the htacess see the "test" redirect the site for test location ex: www.silva.com
and to that for the other words that i enter after "/"
for the folders that exist in server the htacess will don´t do nothing
the objective is only for the words what i want
this is possible?
thanks for your help

 

What exactly are you trying to do?
You left that part out

There might be a better way to accomplish your task.

 

what is test.. a file, folder or what? explain it first if you want help on it.
and who's site is silva dot com?

 

put in .htaccess the following:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /controller.php [L]
</IfModule>

Code (markup):

then in controller.php put the following

if($_SERVER["REDIRECT_URL"]=='/test/'){
//do this
}

Code (markup):

 

This is similar to how wordpress handle's friendly URLs in .htaccess

RewriteEngine On
RewriteBase /

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

Code (markup):

See the two RewriteCond lines ending in !-f and !-d
Those conditions mean as long as the filename is not an existing directory or existing file. If they are, then it skips the rule and goes straight to that file or folder.