Re: [PHP] Re: Globals

[Greg Beaver]

Jim,

My bad, I posted the wrong code.  Try this instead to see the bug:

<?php 
function not_super()
{
   var_dump(isset($GLOBALS['GLOBALS']));
   return array_keys($GLOBALS);
}
//var_dump(not_super(), array_keys($GLOBALS));
not_super();
not_super();

?>

run this code, don't read it, you will see output of bool(false),
bool(false)
However, the following code works as expected!

<?php
function not_super()
{
   return array_keys($GLOBALS);
}
var_dump(not_super(), array_keys($GLOBALS));
?>
GLOBALS will be present in both arrays.

Very odd behavior.

Note that in PHP 5.0.0b1, the first function does work, so this is fixed 
somewhere in there.

Greg
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phpDocumentor
http://www.phpdoc.org
Jim Lucas wrote:

umm...  That is what is going to happen when you follow your example.

I think you are mistaken in what you are expecting...

This line:
 $a = array_keys($GLOBALS);
will give you an array of values that match the keys of the $GLOBALS array

it won't copy the arrays.

Try this.

<PRE>
<?php
$a = array_keys($GLOBALS);
foreach($a AS $key => $value) {
 echo $key."=>(".$value.")\n";
}
?>
Jim Lucas

----- Original Message -----
From: "Greg Beaver" <[EMAIL PROTECTED]>
To: "Jim Lucas" <[EMAIL PROTECTED]>
Cc: "Leif K-Brooks" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Friday, August 01, 2003 1:42 PM
Subject: Re: [PHP] Re: Globals
 

Hi Jim,

The code you posted is correct, I never contested that.  Read carefully.

<?php
function not_super()
{
   var_dump(isset($GLOBALS['GLOBALS']));
   $a = array_keys($GLOBALS);
   var_dump(isset($a['GLOBALS']));
}
not_super();
?>
run this code, don't read it, you will see output of bool(false),
bool(false)
However, the following code works as expected!

<?php
function not_super()
{
   return array_keys($GLOBALS);
}
var_dump(not_super(), array_keys($GLOBALS));
?>
GLOBALS will be present in both arrays.

Very odd behavior.

Greg

Jim Lucas wrote:

   

actually, it does work and it does exist.

Try using print_r() or

print_r(array_keys($GLOBALS));

and you will see an entry for GLOBALS

mine is located at #13

Jim Lucas

----- Original Message -----
From: "Greg Beaver" <[EMAIL PROTECTED]>
To: "Leif K-Brooks" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Friday, August 01, 2003 12:45 PM
Subject: Re: [PHP] Re: Globals


     

Try this code:

<?php
function blah() {
var_dump($GLOBALS['GLOBALS']);
}

blah();
?>
It appears that in a function scope, it doesn't.  This is definitely a
bug, I'll post it if it hasn't already been noticed.
Greg

Leif K-Brooks wrote:



       

Greg Beaver wrote:



         

$GLOBALS does not contain a reference to itself

           

Yes it does. I just ran the following, and I got "Greg is wrong."

<?php
$foo = 'Greg is wrong.';
echo $GLOBALS['GLOBALS']['GLOBALS']['GLOBALS']['foo'];
?>


         

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