PHP表格列

So my PHP displays a MySQL table, I'm aware you can tyle these which I plan to. But as the image below shows, the add button adds another column.

Is it possible to make the add button below the two columns update and delete? If so how can I do this. Here is my code, sorry for any errors or being messy, I'm still learning.

while ($record = mysql_fetch_array($myData)) {
  echo "<form action=usermanagement.php method=post>";
  echo "<tr>";
  echo "<td>" . "<input type=text name=id value=" . $record['ID'] . " </td>";
  echo "<td>" . "<input type=text name=rank value=" . $record['Rank'] . " </td>";
  echo "<td>" . "<input type=text name=username value=" . $record['Username'] . " </td>";
  echo "<td>" . "<input type=text name=password value=" . $record['Password'] . " </td>";
  echo "<td>" . "<input type=hidden name=hidden value=" . $record['ID'] . " </td>";
  echo "<td>" . "<input type=submit name=update value=update" . " </td>";
  echo "<td>" . "<input type=submit name=delete value=delete" . " </td>";
  echo "</tr>";
  echo "</form>";
}
echo "<form action=usermanagement.php method=post>";
echo "<tr>";
echo "<td><input type=text name=uid></td>";
echo "<td><input type=text name=urank></td>";
echo "<td><input type=text name=uusername></td>";
echo "<td><input type=text name=upassword></td>";
echo "<td>" . "<input type=submit name=add value=add" . " </td>";
echo "</form>";
echo "</table>";    

Pay attention to the closing tags of the inputs.. the hidden inputs can be put anywhere in the table as they not being displayed:

while($record = mysql_fetch_array($myData)) {
    echo '<form action=usermanagement.php method=post>
              <tr>
                   <td>
                        <input type=text name=id value="' . $record['ID'] . '" />
                   </td>
                   <td>
                        <input type=text name=rank value="' . $record['Rank'] . '" />
                   </td>
                   <td>
                        <input type=text name=username value="' . $record['Username'] . '" />
                   </td>
                   <td>
                        <input type=text name=password value="' . $record['Password'] . '" />
                   </td>
                   <td>
                        <input type=hidden name=hidden value="' . $record['ID'] . '" />
                        <input type=submit name=update value=update />
                   </td>
                   <td>
                        <input type=submit name=delete value=delete />
                   </td>
              </tr>
          </form>';
}

echo '<form action=usermanagement.php method=post>
          <tr>
               <td>
                    <input type=text name=uid />
               </td>
               <td>
                    <input type=text name=urank />
               </td>
               <td>
                    <input type=text name=uusername />
               </td>
               <td>
                    <input type=text name=upassword />
               </td>
               <td colspan="2">
                    <input type=submit name=add value=add />
               </td>
          </tr>
      </form>';

Also, try stop using mysql_* functions as they being deprecated. Use PDO, mysqli_ or the MySQLi class instead.

You should replace this:

echo "<td>" . "<input type=submit name=add value=add" . " </td>";

By this:

echo "<td colspan='3'>" . "<input type=submit name=add value=add" . "></td>";

Use css (add class="add" to the add button):

 .add{
   position: relative;
   left: 50px; (...adjust)
 }