gistfile1.php

    public static function calculate_days($from,$to) {
        $aryRange=array();

        $iDateFrom=mktime(1,0,0,substr($from,5,2),     substr($from,8,2),substr($from,0,4));
        $iDateTo=mktime(1,0,0,substr($to,5,2),     substr($to,8,2),substr($to,0,4));

        if ($iDateTo>=$iDateFrom)
        {
            array_push($aryRange,date('Y-m-d',$iDateFrom)); // first entry
            while ($iDateFrom<$iDateTo)
            {
                $iDateFrom+=86400; // add 24 hours
                array_push($aryRange,date('Y-m-d',$iDateFrom));
            }
            return $aryRange;
        }
        else {
            return false;
        }
    }