//this code is for output
$selectedMonths = isset(io::$post['month']) && !empty(io::$post['month'])?io::$post['month']:date('m');
io::$out['month'] = $this->getMonths(date('m'), $selectedMonth);

//this is the function that gives me list of months, default item is a current month
private function getMonths($selectedMonth) {
    $arr = array();
    $j = 0;
    for ($i = 1; $i <= 12; $i++) {
        if ($i < 10) {
            $i = "0" . $i;
        }
        $arr[$j]['number'] = $i;
        $monthName = date("F", strtotime(date("Y-$i-01")));
        $arr[$j]['name'] = $monthName;
        if ($i == $selectedMonth) {
            $arr[$i-1]['selected'] = "selected";
        } else {
            $arr[$i-1]['selected'] = "";
        }
        $j++;
    }
    return $arr;
}