Re: SPL ArrayAccess offsetExists default behavior

Hello, On Tue, Jan 13, 2009 at 4:43 PM, Mark van der Velden <mark@dynom.nl> wrote: > Hi list, > > The following doesn't strike me as consistent behavior: > > $a = new ArrayObject(); > $a["foobar"] = NULL; > > echo (int) isset( $a["foobar"] ); // Output: 1 > > > While it's technically correct, I find it confusing. The reason is probably > because of a array_key_exists (or property_exists) check within > offsetExists() that do not take return false on a NULL value, unlike > isset(). > > What say you ? This is indeed a small inconsistency. The problem is that by its name, offsetExists() should return true on those cases (similarly to array_key_exists or property_exists). Since it is directly called within isset(), isset() should return true as well. The problem is that checking the value would cause a offsetGet() to be called, which will be a BC break, so I'm not sure if it's worth changing. Regards > > > - Mark > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > > > > -- Etienne Kneuss http://www.colder.ch Men never do evil so completely and cheerfully as when they do it from a religious conviction. -- Pascal