John,
YES! That's what I was looking for. Thanks for the explaination. It helps a
great deal. I had $_SERVER['DOCUMENT_ROOT'] work for me. But I'm still
struggling with $_SERVER['PHP_SELF'], because it's not returning anything.
So here's the second part to my question stated earlier. Let's say, for
example, I had a class included in someFile.php. The included class looks
like the class below:
<?php
class someClass {
function someFunction () {
$root = $_SERVER['DOCUMENT_ROOT'];
return $root;
}
function someFunction2 () {
$path = $this->someFunction() . $_SERVER['PHP_SELF'];
return $path;
}
}
?>
Shouldn't the value of $_SERVER['PHP_SELF'] contain the path of someFile.php
and not the path of the class file which was included in someFile.php? Or
what should this value be? I want the $_SERVER['PHP_SELF'] value to be
/path/someFile.php, or the value of whatever page included this class file
and called the methods of the class. How would I do that? Because right now
it returns a blank string.
> -----Original Message-----
> From: John W. Holmes [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, January 26, 2003 3:37 PM
> To: '@ Nilaab'; 'Php-General'
> Subject: RE: [PHP] Predefined Variables In Classes
>
>
> > Well, I don't think this has anything to do with predefined variables
> > being
> > global or not because I only have use for them within the specific
> > methods.
> > The methods will capture their values and assign them to a variable
> inside
> > the function, which will return that variable at the end. The
> processing
> > of
> > $PHP_SELF and $DOCUMENT_ROOT only happens in one place. I might be
> wrong,
> > not sure. But right now all I know is that I am confused and the link
> you
> > sent me didn't help explain what I need to know because it states no
> > mention
> > of predefined variables. Can you perhaps give me an example of what
> you
> > are
> > trying to tell me?
>
> Predefined or not, it's still a variable. If you want a variable inside
> of your function to have the value of a variable outside of your
> function, then you have to make it global. $PHP_SELF inside of your
> function has no value because it's relative to the function, not the
> script. Just like $a inside of a function wouldn't have a value unless
> you assigned one to it. Using "global $PHP_SELF" at the beginning of
> your function (or method, same thing) will now make the variable
> $PHP_SELF have the same value as it does outside of your function.
>
> > I read about variable scope and it says nothing about predefined
> > variables.
> > So how will using the $_SERVER associate array help me with this?
> Remember
> > that globals is on, so I don't need to use $_SERVER, $_POST, $_GET,
> etc.
> > to
> > get my values. But, in the meantime I'll go ahead and try using the
> > associate autoglobal arrays anyway, like $_SERVER, just to test it and
> to
> > see if it works for me. And if it does, it'll bug me until I find out
> why
> > it
> > works. Thanks your input Philip. If anyone else has any thoughts or
> > explainations for me to understad this then that would be great.
>
> $_SERVER['PHP_SELF'] will always work, regardless of variable scope or
> register_globals setting. The $_SERVER array is a superglobal, so it'll
> have the same value inside your method or outside of it, without you
> having to do anything special.
>
> Hope that helps.
>
> ---John W. Holmes...
>
> PHP Architect - A monthly magazine for PHP Professionals. Get your copy
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>
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