php - Json経由でphpスクリプトを呼び出し、Datepickerで無効にする日の配列を返す方法

Question

次の例では、MySql テーブルを読み取る php スクリプトを json 経由で呼び出し、$myBadDates を無効にして配列を返す方法を知る必要があります。

$(function() {
        $( "#pickdate" ).datepicker({
            dateFormat: 'dd MM yy',
            beforeShowDay: checkAvailability
            });

})


var $myBadDates = new Array("10 October 2010","21 October 2010","12 November 2010");

function checkAvailability(mydate){
var $return=true;
var $returnclass ="available";
$checkdate = $.datepicker.formatDate('dd MM yy', mydate);
for(var i = 0; i < $myBadDates.length; i++)
    {    
       if($myBadDates[i] == $checkdate)
          {
        $return = false;
        $returnclass= "unavailable";
        }
    }
return [$return,$returnclass];
}

ここに私のphpスクリプトがあります
:

include 'panel/db.php';
$dates_closed = array();

 ///  Query Dates Closed ///
 $query = "SELECT dates from closed_dates order by dates ";  
 $result = mysql_query($query);
 while($row=mysql_fetch_array($result)) {
   $days  = $row['dates'];
   array_push($date_closed,$days);
 }   
 echo json_encode($date_closed);    

?>