Re: Enforce a constant in a class.

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. Thanks to you all for the discussion. Regards, Richard. -- ----- Richard Quadling "Standing on the shoulders of some very clever giants!" EE : http://www.experts-exchange.com/M_248814.html EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling