Maybe if you tell us exactly what you wish to achieve.
Class variables that are not created at object creation is bad design.
Olav Mørkrid schreef:
yes, but that assumes you have a defined class. if $a comes from
mysql_fetch_object() for instance you have just a stdobject, and this
method will p
yes, but that assumes you have a defined class. if $a comes from
mysql_fetch_object() for instance you have just a stdobject, and this
method will produce an error.
On 17/08/07, Michael Preslar <[EMAIL PROTECTED]> wrote:
> Found something.
>
> For class variables..
>
> http://us.php.net/manual/en/
Found something.
For class variables..
http://us.php.net/manual/en/function.property-exists.php
class a {
var $b;
}
if (property_exists('a','b')) {
print "yes\n";
}
On 8/17/07, Olav Mørkrid <[EMAIL PROTECTED]> wrote:
> the test i need should give the following results:
>
> - FALSE when $a
the solution has been found. array_key_exists() can actually be used
on objects, and yields the correct result.
http://no.php.net/array_key_exists
thanks to dordea cosmin for pointing this out.
On 17/08/07, Olav Mørkrid <[EMAIL PROTECTED]> wrote:
> the test i need should give the following resul
the test i need should give the following results:
- FALSE when $a->b does not exist at all
- TRUE when $a->b = null
- TRUE when $a->b =
empty() gives true for both $a->b = null and not setting any value, so
that's no good.
borokovs suggestion seems to miss the purpose.
anyone else?
On 17/08/
Olav Mørkrid wrote:
> how do i test if a property of a stdclass object is set, even if its
> value is null, similar to how array_key_exists() works for arrays.
>
> the following method fails:
>
> $a->b = null;
> if(isset($a->b))
> echo "yes";
>
> and property_exists() seems only to work
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