2010/1/22 Ashley Sheridan <a...@ashleysheridan.co.uk> > Constants are there for things that should never change. If you ever need to > change them, then whoever created the base class either didn't think things > through properly, or you're not. Imagine a class that sets the value of π > (as is the erstwhile example for constants) If further classes that > implemented it were of a particular historical persuasion, then they might > want to redefine the constant as just 3. It seemed like a good idea to the > historical Roman Catholics at the time (it was defined as 3 in the Bible > after all) but it doesn't make it the correct value (imagine the problems > with volume calculations!) > > Constants are so called for a good reason!
And in the class that I want to enforce the presence of the constant, it will be constant. I just want to enforce the presence. -- ----- 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 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
