Re: [PHP] Re: Globals

[Greg Beaver]

What version of PHP are you running?  I have PHP 4.3.2 on windows XP 
here.  I'm getting bool(false) bool(false) every time.

Greg

Jim Lucas wrote:

I don't follow what you are trying to say here?

it is returning true, just as it should.

show me the results that you get by running this code.

here is mine

bool(true)
bool(true)
What is wrong about this?

Read my notes below

<?php
function not_super()
{
   $v = isset($GLOBALS['GLOBALS']);    //  This will return TRUE or FALSE
   var_dump($v);                       //  This will echo the value of $v
                                       //  This again is going to be TRUE
or FALSE
                                       //        or it may show 1 or 0
   return array_keys($GLOBALS);        //  because we are not echoing the
return below
                                       //  This will do nothing.
}
//var_dump(not_super(), array_keys($GLOBALS));
not_super();   //  First pass through
not_super();   //  Second pass through
What results are you expecting to get from this???
And why???
Jim

----- Original Message -----
From: "Greg Beaver" <[EMAIL PROTECTED]>
To: "Jim Lucas" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Friday, August 01, 2003 2:43 PM
Subject: Re: [PHP] Re: Globals
 

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
--
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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