[eluser]newbie boy[/eluser]
I got the solution:
in the model controller this must go:
Code:
$calendar = $data['day']."/".$data['month']."/".$data['year'];
$date = explode("/",$calendar);
$this->birthday = date("Y/m/d",mktime(0,0,0,$date[1],$date[0],$date[2]));
hope this can help you too.