Re: Enforce a constant in a class.

Op 1/22/10 5:19 PM, Richard Quadling schreef: > 2010/1/22 Jochem Maas <jochem@iamjochem.com>: >> constants in interfaces are not meant for this. a class constant doesn't >> constitute an interface. I believe constants in interfaces are allowed purely >> because it is helpful to have them defined outside of the global space and >> somewhere where all implementors of said interface can realiably reference them. > > Yep. > >> I would suggest you need to define some extra methods in your interface e.g. >> >> function getKillNotes(); >> function getKillTypeFlag(); > > The other option would be to be able to _easily_ detect the presence > of a class constant. > > Without an error. > > Fatal or otherwise. > > $rfClass = ReflecionClass('KilledClass'); > if (in_array('KILL_SWITCH_NOTES', $rfClass->getConstants())) { ...} > > seems the only way. > > You can't use getConstant('KILL_SWITCH_NOTES') as False is returned > for failure with no differentiation for a False value. Grrr. > defined() ??? besides you can cache the reflection results - and maybe you only need the reflection stuff when code is in development mode, I'm assuming your using it to detect coding/developer errors. > > > > Thanks to you all for the discussion. > > Regards, > > Richard. >