Re: [PHP] [Class] Behaviour global variables

[Bas Jobsen]

$TEST= new TEST;
$a=3;
$b=4;
$TEST->Show();

works, fine

better to use $GLOBALS['a'] instead of global $a

Op woensdag 14 augustus 2002 15:27, schreef Tim Stoop:
> Hi there,
>
> I'm forgetting something, but I can't seem to get to it... Consider the
> following Class.
>
> class Test
> {
> var $a;
> var $b;
>
> function Test()
> {
> $this->a = 2;
> $this->b = 5;
> }
>
> function Show()
> {
> global $a, $b;
>
> echo("a: ".$a);
> echo("a: ".$this->a);
> echo("b: ".$b);
> echo("b: ".$this->b);
> }
> }
>
> After proper initialisation, calling the function Show() gives:
>
> a:
> a: 2
> b:
> b: 5
>
> What am I forgetting here? Tia for answers!

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RE: [PHP] [Class] Behaviour global variables

[Richard Black]

Not done any OO stuff with PHP, but I would hazard a guess that the
problem is one of scope.

Rather than global making available class variables, it makes available
GLOBAL variables. And I'm guessing there isn't a global variable a or b,
which is why they show up blank.

HTH,

Richy
==
Richard Black
Systems Programmer, DataVisibility Ltd - http://www.datavisibility.com
Tel: 0141 435 3504
Email: [EMAIL PROTECTED] 

-Original Message-
From: Tim Stoop [mailto:[EMAIL PROTECTED]] 
Sent: 14 August 2002 14:27
To: [EMAIL PROTECTED]
Subject: [PHP] [Class] Behaviour global variables


Hi there,

I'm forgetting something, but I can't seem to get to it... Consider the 
following Class.

class Test
{
var $a;
var $b;

function Test()
{
$this->a = 2;
$this->b = 5;
}

function Show()
{
global $a, $b;

echo("a: ".$a);
echo("a: ".$this->a);
echo("b: ".$b);
echo("b: ".$this->b);
}
}

After proper initialisation, calling the function Show() gives:

a:
a: 2
b:
b: 5

What am I forgetting here? Tia for answers!

-- 
Kind regards,
Tim

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