Re: [PHP-DEV] variable_exists() patch

[Alan Knowles]

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..

Regards
Alan




 



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