Re: [dcphp-dev] Digest for washington-dcphp-group@googlegroups.com - 1 update in 1 topic

Hello Ray,

In this context it's practically the same thing, the behavior changes when used in an inheritance context with static calls

expl : 

Class Thing 
{ 
    const PRIMARY_KEY = 'key'; 
    public static function keys() 
    { 
        $x = self::PRIMARY_KEY; 
        $y = static::PRIMARY_KEY; 
        return $x . $y; 
    } 
} 
Class Otherthing extends Thing
{
    const PRIMARY_KEY = 'Another key'; 
}
echo Thing::keys(); 
echo Otherthing::keys();

will output

keykey

keyAnother key

This is called late static binding, which was introduced in PHP 5.3

http://php.net/manual/en/language.oop5.late-static-bindings.php

On 13 October 2014 13:34, <washington-dcphp-group@googlegroups.com> wrote:

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• PHP self:: vs static:: - 1 Update

PHP self:: vs static::

Ray <ray.paseur@gmail.com>: Oct 12 04:32PM -0400 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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