Multiple Checkboxes for One Field in a Database Table

CODE

<?php
//set variables to connect to the database
$hostName = "(FILL IN HOSTNAME FOR DB)";
$userName = "(FILL IN USERNAME FOR DB)";
$password = "(FILL IN PASSWORD FOR DB)";
$dbName = "(FILL IN DB NAME)";
// make connection to database 
mysql_connect($hostName, $userName, $password) or die( "Unable to connect to host $hostName");
mysql_select_db($dbName) or die("Unable to select database $dbName");
?>
<table>
  <tr>
	<td>Display</td>
	<td>Checkbox</td>
  </tr>
<?php
//query the database for all relevant rows to be updated
$query = "SELECT * FROM (FILL IN TABLE NAME) WHERE (FILL IN FIELD NAME) = '(FILL IN RESTRICTION)'";
$result = mysql_query($query);
$number = mysql_numrows($result);
//set up a while loop to display all of the rows and checkboxes
$i=0;
while($i<$number)
{
	$id_variable = mysql_result($result,$i, 'id_field');
	$display_variable = mysql_result($result,$i, 'display_field');
?>
  <tr>
	<td><?php echo $display_variable; ?></td>
	<td>
<!--name the checkbox with the id variable to make each one unique for the following process page-->
	<input type="checkbox" name="cb_<?php echo $id_variable;?>"/>
	</td>   
  </tr>
<?php
	$i++;
}
?>
  <tr>
	<td colspan="2" align="right">
	<input type="submit" name="button" value="Submit" />
	</td>
  </tr>
</table>

DISPLAY