Re: [dcphp-dev] PHP self:: vs static::

static:: uses late static binding whereas self does not. If you were to extend Thing and redefine PRIMARY_KEY (say, to 'foobar'), running keys() on an instance of that subclass would return 'keyfoobar'.

Put another way, self:: always refers only to the class it is written in, while static:: refers to the class context in which it is run.

On Oct 12, 2014 2:32 PM, "Ray" <ray.paseur@gmail.com> wrote:

In this code snippet, I get output that says "keykey"

What is the difference between the meanings of static:: and self:: in
this or any other context.  Any man page reference would be gratefully
received!

<?php
error_reporting(E_ALL);

Class Thing
{
    const PRIMARY_KEY = 'key';

    public function keys()
    {
        $x = self::PRIMARY_KEY;
        $y = static::PRIMARY_KEY;
        return $x . $y;
    }
}

$thing = new Thing;
var_dump($thing->keys());

Thanks and regards, Ray

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