Get the value from DropDown list [RESOLVED]

I've put the values to the URL:

Code:

<a href="<?=base_url()?>burndown?id=<?=$milestone->id;?>&id22=<?=$milestone->name?>&id33=<?=$project->name;?>"data-toggle=""><i class="ion-ios-heart milestone__header__right__icon"></i></a>

I got it like:

Code:

    <?php echo $_GET["id"];
    $sum1 = $_GET["id"];
    ?>
    
    <?php echo $_GET["id22"];
   $sum2 = $_GET["id22"];    
    ?>
    
    <?php echo $_GET["id33"];
   $sum3 = $_GET["id33"];    
    ?>

Thanks for the suggestions. It's working good

Anyway Can you please tell me how put these values to Myssql querry?
I have to use

Code:

<?php echo $_GET["id"];?>

in

Code:

<?php

$result = mysql_query('SELECT SUM(estimated_hours) AS value_sum FROM project_has_tasks WHERE milestone_id ="(((HERE))))"');
$row = mysql_fetch_assoc($result);
$sum = $row['value_sum'];
{
echo $sum;
}
?>

Any suggestions?
Just simple put there

Code:

$_GET["id"]

,

Code:

$id"

dosent work...