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How to access the per-class constant from a member function?

php.internals

Kamesh Jayachandran

22 years ago

Hi All,
<?php
class Foo {
const HELLO = "con\n";
function memberfunc() {
echo HELLO; //does not work
echo Foo::HELLO; //works
}
}
$obj = new Foo();
$obj->memberfunc();
?>

With a error_reporting=2047 I get

Notice: Use of undefined constant HELLO - assumed 'HELLO' in
/rekha/php-5.0.0/test.php on line 5
Whey echo HELLO fails?

With regards
Kamesh Jayachandran

Mehdi Achour

22 years ago

Hi Kamesh,

Try replacing Foo::HELLO with self::HELLO. This should work.
(this is documented, the manual will reflect it in the next build)

didou

Kamesh Jayachandran wrote:

Kamesh Jayachandran

22 years ago

Hi Mehdi,
Even Foo::HELLO works.
My question is why simple HELLO inside a member function does not work.

Why are we not able to access the static and const members of a class
from inside a class member function like the way with other member
variables.?

Any special reasons.

With regards
Kamesh Jayachandran
On Wed, 28 Jul 2004 18:10:52 +0200, "Mehdi Achour" <didou@php.net> said:

Derick Rethans

22 years ago

On Mon, 2 Aug 2004, Kamesh Jayachandran wrote:

> Hi Mehdi,
> Even Foo::HELLO works.
> My question is why simple HELLO inside a member function does not work.
>
> Why are we not able to access the static and const members of a class
> from inside a class member function like the way with other member
> variables.?

Other member variables don't work either like this, you need to specify
$this-> always.

Derick

Kamesh Jayachandran

22 years ago

Hi Derick,
Thanks for the correction.

With regards
Kamesh Jayachandran
On Mon, 2 Aug 2004 16:02:23 +0200 (CEST), "Derick Rethans"
<derick@php.net> said: