Hi Stas, Got it. Thanks for your detailed explanation :-)
2010/10/3 Stas Malyshev <smalys...@sugarcrm.com> > Hi! > > > The result is "Fatal error: Class 'C' not found". Is this result expected? >> > > Yes. Define your classes before using them, or use autoloading. > > Why? >> > > (Highly technical details) Because C can't be early-bound on compile time > due to the dependency on the interface and thus at the time of the call it's > not defined, because the definition happens at run-time when control arrives > to the point of class definition. > Since early binding is quite complex, it is best to assume classes always > are defined at run-time and define them before use. > -- > Stanislav Malyshev, Software Architect > SugarCRM: http://www.sugarcrm.com/ > (408)454-6900 ext. 227 > -- Best regards, Jingcheng Zhang Beijing, P.R.China