Re: is_a() versus instanceof

On Sat, 2009-12-19 at 01:42 +0100, Johannes Mueller wrote: > if($foo instanceof bar){ > .. > } > // runs without any notification instanceof is a language construct expecting a class identifier. It doesn't complain about on-existing classes as it would need to trigger the __autoloader which might be way too much. > and > > if(is_a($foo, bar)){ > .. > } > // runs with an undefined constant bar notification is_a() is a function expecting a string. And this warning is unrelated to the fact that the class "bar" doesn't exist, but due to the way PHP treats undefined constants. Behavior is expected, johannes