dynamically create variables at runtime?

[Anon]

for example, i want 4 cookies, dependeding on which subdomain the user is browsing (the subdomain has been placed in the variable $subdomain) i want 4 variables which can be assigned the relevent information when the user logs in...

$localusername = "UGF" . $subdomain . "loggedin";
$localusername = "UGF" . $subdomain . "username";
$localusername = "UGF" . $subdomain . "password";
$localusername = "UGF" . $subdomain . "email";

something like the above however that just assigns everything thats on the right of the = to the localusername variable it doesnt create a variable itself

example:

i want a variable $UGF_mysubdomain_username
i dont know what mysubdomain or username is going to be until runtime

sorry this is very difficult to explain for me but maybe someone will understand what im asking,
thanks in advance :-)

--Dan

[Anon]

oops just noticed all of them are $localusername i should have went through each one changing it to $localpassword $localemail etc. but you get the idea :-) problem still remains though

[[deleted]]

rt(f)m:
http://www.php.net/manual/en/language.variables.variable.php