need a help with form $_POST[]

I have a profile page where user can edit his data. He can also add own titles. Beside every title is also check box. If checked, the value is yes.

I don't know how to move the value from each check box to table. The problem is that I can not get the value of $uTitle. To test if the value of it is there, I uncomment the 8th line. I have no idea why it doesn't echo $uTitle.

Second problem is, even if the value was saved, I would know how to save it into table under column Privacy because under $key aren't just values of uTitle but also of ID.

<form action="<?=$_SERVER['PHP_SELF']?>" method="post">
        <table>
            <?php
            echo "
            <tr>
                <td>Title</td><td>Value</td><td>Privacy</td>
            </tr>";
            //echo $_POST[$uTitle];
            if (isset($_POST))  {
            foreach ($_POST as $key => $value )
               {
               mysql_query ("UPDATE titles SET uValue = '$value' WHERE ID ='$key'");
               }
               }
            $query =  "SELECT * FROM titles WHERE UserID = $ID";
            $result = mysql_query($query);
            $row = mysql_fetch_assoc($result);
            echo "<br /><b>Edit data:</b>  <br /><br />";
            while($row = mysql_fetch_assoc($result))
            {
            extract ($row);
            echo "
            <tr>
                <td><b>$uTitle</b></td>
                <td><input type='text' name='$ID' value='$uValue'></td>
                <td><input type='checkbox' name='$uTitle' value='yes'>
            </tr>";
            }
            ?>
            <tr><td><input type="submit" value="Update"></td>
            </tr>
        </table>
    </form>

PHP:

 

Try with echo($_POST["uTitle"]);

 

Do not echo empty variables ( $_POST[$uTitle] ) !!
Try this one .. works for me

<?php
$uTitle = $_POST['uTitle'];
echo $uTitle;
?>

PHP:

 

You can test the values of POST using:

print_r($_POST);

PHP:

To check if the values are well passed.

 

Usually if the user does not checks the checkbox the value is not posted in to PHP $_POST,hope it helps