Cookies dilema

[rulian]

(php begginer)

okay, i need to create a script that will check if a cookie exists, if yes, extract 2 variables, and run one function, if no cookie or cookie empty, it will run a second function. Only problem is the book i bought to teach myself php mentions how to set cookies but not how to read them or check if they exist, plz help

[Anon]

after a cookie is set they become gloabal variables. so say that $variable is set in a cookie from a previous page. then you just use an if else like so:

if($variable == "something")
some_function();
else
some_other_function();