On 13.01.2009, at 16:58, Etienne Kneuss wrote:

Hello,

On Tue, Jan 13, 2009 at 4:43 PM, Mark van der Velden <m...@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.


Hmm, maybe still worthwhile to classify it as a bug fix? :)

regards,
Lukas Kahwe Smith
m...@pooteeweet.org




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