RWMB_Datetime_Field::value PHP Method

Calculates the timestamp from the datetime string and returns it if $field['timestamp'] is set or the datetime string if not

public static value ( mixed $new, mixed $old, integer $post_id, array $field ) : string \| integer
$new	mixed
$old	mixed
$post_id	integer
$field	array
return	string \| integer

    public static function value($new, $old, $post_id, $field)
    {
        return $field['timestamp'] ? $new['timestamp'] : $new;
    }

RWMB_Datetime_Field