Re: Globalness of variables? Functions & subs

> I noticed that you have to use keyword "global" in front of globla > var.- (one declared at the top of a script outside any functions ) in > order to access it inside a function. So merely designating a var. > global is a little more involved than say Perl or other languages. You > actually have to tell PHP that the function is global. Correct. That is to avoid nasty side-effect bugs where global variables override local variables in functions. In PHP you need to declare which global variables you intend to use inside a function. Let's just say I had a bad experience once related to this and that is why this is so. You can use $GLOBALS['var_name'] in your function as a workaround if you don't like declaring which globals you intend to use. > I see functions , are there subroutine calls. I guess not. A function > acts as a sub when it returns no value . A sub that returns a value is > a function. I see no point in this distinction. And no, PHP just has functions. And a function doesn't need to return anything. -Rasmus