Posted by wildernesscat on 08/08/06 10:54

Hello there,

I'm looking for a method to test, whether an object has a certain
property.
Consider the following snippet:

class A { var $aaa; }
$var = new A;

(Assuming that the structure of class A is unknown) I need a way to
check whether $var->aaa exists (test positive), and whether $var->xxx
exists (test negative). I tried boolean tests, isset(), is_null(), but
they can't tell the difference.
I guess I could convert the object to an array and test its indices,
but that wouldn't be practical for large object with many fields.

Any other ideas?

Thanks in advance,
Danny

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