Scratching my head over this one.
I see very little difference between $GLOBALS and get_defined_vars(), but when I use get_defined_vars() inside a function it only seems to return variables within the local scope of the function!
(this is latest PHP 4)
What the heck...?
get_defined_vars returns all the variables within the local scope, yes...
But what's that got to do with $GLOBALS?
Cheers
PHP Manual entry for get_defined_vars():
"This function returns an multidimensional array containing a list of all defined variables, be them environment, server or user-defined variables"
It doesn't say anything about scope. Where might I have found that aspect documented? Or did you just figure that out yourself via trial&error?
The reason I refer to GLOBALS is that, as far as I can see, it has the same value as get_defined_vars() (when get_defined_vars() is called outside a function, that is).
But thanks for the confirmation, colinhorne!
BTW, array_keys(array_slice($GLOBALS,13)) seems to return the names of user-defined variables. Don't know whether that's always (using 13 as an index) the case...
But I like it...
It's not exactly documentation, I guess, but the latest (topmost) user comment in the manual page for get_defined_vars() asks and answers the same question.
It's not exactly documentation, I guess, but the latest (topmost) user comment in the manual page for get_defined_vars() asks and answers the same question.
Well, I'll be...!
So it does...!
I have a manual that I downloaded and installed locally, but despite being by the same authors, it lacks the user comments.
I didn't realize there were different manual versions, so I should get on top of that!
Thanks, "Installer" (guess I'd better live up to your name)!
(seems the behavior is pretty much as I described)
Heh, yeah. I checked the manual before I posted my first comment. I thought it was you who posted the comment on the man...
(Yeah, I just did trail + error to find out)
Cheers!