my function won't work

[The Eerie Network]

My small function is below

// Date conversion $date is in yyyy-mm-dd format
function dateconvert($date) {
    $year = substr($date, 0, 4);
    $month = substr($date, 5, 2);
    $day = substr($date, 8, 2);

    $month_list[01] = "January";
    $month_list[02] = "Febuary";
    $month_list[03] = "March";
    $month_list[04] = "April";
    $month_list[05] = "May";
    $month_list[06] = "June";
    $month_list[07] = "July";
    $month_list[08] = "August";
    $month_list[09] = "September";
    $month_list[10] = "October";
    $month_list[11] = "November";
    $month_list[12] = "December";

    return $month_list[$month] . " " . $day . ", " . $year . ".";
} 

My problem is that all it displays is the day and year, but not the month, i'm sure it has somthing to do with the "$month_list[$month]" section, but I don't know.