ผมควรจะทำงัยครับ ... คือว่าผมเขียน code ให้แสดง วันที่ตั้งแต่วันที่ 27-26 แล้ว

<?php
    $start = strtotime('2009-10-27');
    $end = strtotime('2009-11-26');
    $date_second = 24*60*60;
    var_dump($_GET);
    echo '<form method="get" action="">';
    for($d=$start; $d<=$end; $d+=$date_second){
        echo '<br/>','<input type="checkbox" name="d[]" value="',date('Y-m-d',$d),'" />';
        echo date('d,M',$d);
    }
    echo '<input type="submit" value="test"/>';
    echo '</form>';
?>

<?php
    $start = strtotime('2009-10-27');
    $end = strtotime('2009-11-26');
    $date_second = 24*60*60;

    if (!empty($_GET['year'])){
        $d = (array)$_GET['d'];
        $year = $_GET['year'];
        $month = $_GET['month'];
        $user_name = $_GET['user_name'];
        $x = array();
        foreach(range(1,31) as $date){
            if (in_array($date,$d)){
                $x[$date] = 0;
            }else{
                $x[$date] = 1;
            }
        }
        $query = "INSERT INTO tb(user_name,y,m,d1,d2,d3,d4,d5,d6,d7,d8,d9,d10,d11,d12,d13,d14,d15,d16,d17,d18,d19,d20,d21,d22,d23,d24,d25,d26,d27,d28,d29,d30,d31)";
        $query .= "VALUES('$user_name','$year','$month','".implode("','",$x)."')";
        echo $query;
    }

    echo '<form method="get" action="">';
    echo '<input type="text" name="user_name" value="user_name_test"/>';
    echo '<input type="text" name="year" value="2009"/>';
    echo '<input type="text" name="month" value="11"/>';
    for($d=$start; $d<=$end; $d+=$date_second){
        echo '<br/>','<input type="checkbox" name="d[]" value="',date('d',$d),'" />';
        echo date('d,M',$d);
    }
    echo '<input type="submit" value="test"/>';
    echo '</form>';
?>

    $day.="<td align='center'><input type='checkbox' size='1' name='d31' ></td>";
  $day.="<td align='center'><input type='checkbox' size='1' name='d01' ></td>";

$d31 = isset($_GET['d31']) ? 1 : 0;
$d01= isset($_GET['d01']) ? 1 : 0;