escaping null values

[eluser]xwero[/eluser]
[quote author="Pygon" date="1193870010"]

Code:

function empty2null(&$value,$key){
if( empty($value) && $value != 0) $value = NULL;
}

array_walk_recursive($_POST);

[/quote]
you forgot to put your function as the second argument

Code:

array_walk_recursive($_POST,'empty2null');