Re: Re: Enforce a constant in a class.

Richard Quadling wrote:

2010/1/22 Pete Ford <pete@justcroft.com>:

IMHO, a constant is not the correct beastie in this case - if you want it to be different depending on the implementation then it ain't a constant! You should probably have protected static variables in the interface, and use the implementation's constructor to set the implementation-specific value (or override the default) interface SetKillSwitch {

       protected static $isSet = TRUE;
       protected static $notes;
       protected static $date = '2010-01-22T11:23:32+0000';

} class KilledClass implements SetKillSwitch {

       public function __construct()
       {
               self::$isSet = FALSE;
               self::$date = '2010-01-21T09:30:00+0000';
               self::$notes = "Test";
       }

} Cheers Pete Ford

And of course, "Fatal error: Interfaces may not include member variables".

Ooops, sorry :) I tend to end up using abstract base classes rather than interfaces for that sort of reason...