Why can't I reference a member variable?

[Shuttermutt]

Okay, I'm a relative newcomer to object-oriented PHP, but no stranger to OOP
in general. I've spent the last three hours trying to figure out why this
code snipped doesn't do what I expect it to:

---snip---
<?php

$myTest = new Test;

echo $myTest->GetClassName ; // Nada

class Test
{

// Class constructor
function Test()
{
// Empty on purpose...
}

// Returns class name
function GetClassName()
{
return "Test";
}

}

?>
---snip---

I would expect the "echo ..." line to display "Test", but it doesn't. I
swear I must be missing something really simple and really stupid, but I
can't find it for the life of me. Little help? Oh, PHP Version 4.3.4 if it
makes a difference.

Thanks in advance,
'Mutt

[MyOdd]

Re: Why can't I reference a member variable?


"Shuttermut t" <anonymous@nosp am.net> wrote in message
news:OpS5c.7856 7$LD5.18060@twi ster.rdc-kc.rr.com...[color=blue]
> Okay, I'm a relative newcomer to object-oriented PHP, but no stranger to[/color]
OOP[color=blue]
> in general. I've spent the last three hours trying to figure out why this
> code snipped doesn't do what I expect it to:
>[/color]

Try it the other way around.
[color=blue]
> <?php
> class Test
> {
>
> // Class constructor
> function Test()
> {
> // Empty on purpose...
> }
>
> // Returns class name
> function GetClassName()
> {
> return "Test";
> }
>
> }[/color]
[color=blue]
> $myTest = new Test;
>
> echo $myTest->GetClassName ; // Nada
>
>
> ?>[/color]

Note the class is b4 the calling of the class.

Simon.

[Bruno Desthuilliers]

Re: Why can't I reference a member variable?

Shuttermutt wrote:[color=blue]
> Okay, I'm a relative newcomer to object-oriented PHP, but no stranger to OOP
> in general. I've spent the last three hours trying to figure out why this
> code snipped doesn't do what I expect it to:
>
> ---snip---
> <?php
>
> $myTest = new Test;
>
> echo $myTest->GetClassName ; // Nada
>
> class Test
> {
>
> // Class constructor
> function Test()
> {
> // Empty on purpose...
> }
>
> // Returns class name
> function GetClassName()
> {
> return "Test";
> }
>
> }
>
> ?>
> ---snip---
>
> I would expect the "echo ..." line to display "Test", but it doesn't. I
> swear I must be missing something really simple and really stupid, but I
> can't find it for the life of me. Little help? Oh, PHP Version 4.3.4 if it
> makes a difference.[/color]

Raise your error level, and you'll have the answer (which is quite
obvious BTW, but warnings may help spot less obvious bugs...)

Notice: Undefined property: GetClassName in <filename>.ph p on line 5

Ok, line 5 is :
echo $myTest->GetClassName ; // Nada

Err... seems like parens are missings !-) Used to be a VB coder ?-)

Try this instead :
echo $myTest->GetClassName() ;
[color=blue]
> Thanks in advance,[/color]
You're welcome

[Bruno Desthuilliers]

Re: Why can't I reference a member variable?

MyOdd wrote:[color=blue]
> "Shuttermut t" <anonymous@nosp am.net> wrote in message
> news:OpS5c.7856 7$LD5.18060@twi ster.rdc-kc.rr.com...
>[color=green]
>>Okay, I'm a relative newcomer to object-oriented PHP, but no stranger to[/color]
>
> OOP
>[color=green]
>>in general. I've spent the last three hours trying to figure out why this
>>code snipped doesn't do what I expect it to:
>>[/color]
>
>
> Try it the other way around.
>
>[color=green]
>><?php
>> class Test
>> {
>>
>> // Class constructor
>> function Test()
>> {
>> // Empty on purpose...
>> }
>>
>> // Returns class name
>> function GetClassName()
>> {
>> return "Test";
>> }
>>
>> }[/color]
>
>[color=green]
>>$myTest = new Test;
>>
>>echo $myTest->GetClassName ; // Nada
>>
>>
>>?>[/color]
>
>
> Note the class is b4 the calling of the class.[/color]

Err... The fact is that
- your code exhibits the same problem (you didn't tried your 'solution',
did you ?)
- the OP's code, once the *real* problem is corrected (see other post in
this thread), works quite ok.

BTW, I don't know much about the internals of PHP, but it seems that the
whole file is parsed before execution, so you don't need to put the
class definition *before* using it.

Bruno

[MyOdd]

Re: Why can't I reference a member variable?

[color=blue][color=green]
> >
> >[color=darkred]
> >>$myTest = new Test;
> >>
> >>echo $myTest->GetClassName ; // Nada
> >>
> >>
> >>?>[/color]
> >
> >
> > Note the class is b4 the calling of the class.[/color]
>
> Err... The fact is that
> - your code exhibits the same problem (you didn't tried your 'solution',
> did you ?)[/color]

No, sorry.
[color=blue]
> - the OP's code, once the *real* problem is corrected (see other post in
> this thread), works quite ok.[/color]

Ideed.
[color=blue]
>
> BTW, I don't know much about the internals of PHP, but it seems that the
> whole file is parsed before execution, so you don't need to put the
> class definition *before* using it.
>[/color]

Not for me, but i don't feel like looking into it.

Simon

[Shuttermutt]

Re: Why can't I reference a member variable?

Bruno Desthuilliers wrote:
[color=blue]
>
> Err... seems like parens are missings !-) Used to be a VB coder ?-)
>
> Try this instead :
> echo $myTest->GetClassName() ;
>[color=green]
>> Thanks in advance,[/color]
> You're welcome[/color]

I am SUCH an idiot! Thank you.

--
'Mutt

[Chung Leong]

Re: Why can't I reference a member variable?

Uzytkownik "Bruno Desthuilliers" <bdesth.quelque chose@free.quel quepart.fr>
napisal w wiadomosci news:405830f9$0 $278$626a14ce@n ews.free.fr...[color=blue]
> BTW, I don't know much about the internals of PHP, but it seems that the
> whole file is parsed before execution, so you don't need to put the
> class definition *before* using it.[/color]

No, in PHP class definition is a runtime operation. That's why something
like this works:

function define_cow($goo d) {
if($good) {
class Cow {
var $name;
var $weight;
}
}
else {
class Cow {
var $name;
var $madness_severi ty;
}
}
}

define_cow(fals e);
$obj = new Cow();

[Lāʻie Techie]

Re: Why can't I reference a member variable?

On Wed, 17 Mar 2004 12:30:16 +0100, Bruno Desthuilliers wrote:
[color=blue]
> MyOdd wrote:
> BTW, I don't know much about the internals of PHP, but it seems that the
> whole file is parsed before execution, so you don't need to put the class
> definition *before* using it.
>
> Bruno[/color]

That has changed as of PHP 5.

La'ie Techie