Dynamic subdomains in htaccess using multiple parameters

Hello.

This is my first post here and I thank you in advance for your help. There are 3 day since I try to make this but I can't see the end of it:

I managed to generate this url aaa.adresa.com which display the content from adresa.com/fisier.php?link=aaa. For that, I used this code:

RewriteCond %{HTTP_HOST} !^www\.adresa\.com
RewriteCond %{HTTP_HOST} ([^.]+)\.adresa\.com [NC]
RewriteCond %{REQUEST_URI} !^/fisier\.php$
RewriteCond %{QUERY_STRING} !^link=.
RewriteRule (.*) /fisier.php?link=%1 [QSA,L] 

Code (markup):

Further, I need to get this address:
aaa.adresa.com/bbb to display the content of adresa.com/fisier.php?link=aaa&parametru=bbb


Thank you for your help.

 

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