On Fri, Aug 15, 2003 at 11:36:00AM +0200, Thies C. Arntzen wrote:
> On Fri, Aug 15, 2003 at 07:41:48AM +0800, Alan Knowles wrote:
> > I hit this a couple of months ago.. trying to implement NULL
> > support in dataobjects:
> >
> > $do = DB_DataObject::factory('test');
> > $do->get(12);
> > $do->birthday = null;
> > $do->update();
> >
> > was supposed to generate
> > SELECT * FROM test WHERE id=12;
> > UPDATE test SET birthday=NULL where id = 12;
> >
> > or
> >
> > $do = DB_DataObject::factory('test');
> > $do->birthday = null;
> > $do->find();
> >
> > to do
> > SELECT * FROM test WHERE birthday IS NULL;
> >
> > but since there was no effective way to detect null, as apposed to
> > unset.. I had to give up... - If this could be solved by
> > variable_exists() - even though var $birthday is defined.. It would be
> > great..
>
> alan,
>
> you hit the "nail on the head" - zeev, do you see any way to
> solve alans problem?
>
> re,
> thies
class Foo {
function dump() {
var_dump(array_key_exists('bar', (array)$this));
}
}
$foo = new Foo;
$foo->bar = null;
$foo->dump();
// => bool(true)
It's not that hard to detect.
--
Regards,
Stefan Walk
<[EMAIL PROTECTED]>
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
