public function setDateOfBirth($v) { // keep only the date from the timestamp $year = (int) date("Y", $v); $day = (int) date("j", $v); $month = (int) date("n", $v); $dateOnly = mktime(0, 0, 0, $month, $day, $year); parent::setDateOfBirth(date("Y-m-d", $dateOnly)); }