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 ?
- Mark
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