PHP check boxes not sending info to DB? what am i missing

Question

I have a checkbox that needs to stay checked but for some reason it isnt staying check as it is not passing the information to the database.
once the check is check it then directs to a new page
here is what i have so far..
there are three boxes then send to different pages and different columns in the DB but i have just included one as an example
if ((isset($_POST["MM_update"])) && ($_POST["MM_update"] == "form3")) {
  $updateSQL = sprintf("UPDATE plus_signup SET signedElease=%s WHERE userid=%s",
                       GetSQLValueString(isset($_POST['signedElease']) ? "true" : "", "defined","1","0"),
                       GetSQLValueString($_POST['userid'], "text"));
  mysql_select_db($database_hostprop, $hostprop);
  $Result1 = mysql_query($updateSQL, $hostprop) or die(mysql_error());
  $updateGoTo = "e-lease.php";
  if (isset($_SERVER['QUERY_STRING'])) {
    $updateGoTo .= (strpos($updateGoTo, '?')) ? "&" : "?";
    $updateGoTo .= $_SERVER['QUERY_STRING'];
  header(sprintf("Location: %s", $updateGoTo));
<form action="<?php echo $editFormAction; ?>" method="post" name="form3" id="form3">
      <div align="right"><span id="sprycheckbox1">
        <span class="body-text">E-Lease</span><br />
        <input type="image" src="../images/smalldownload.png" width="35" height="35" alt="download" value="submit"/>
        </a>
        <input type="checkbox" name="SignedLeaseShed" id="leaseshedule"  <?php if (!(strcmp(htmlentities($row_Recordset1['SignedLeaseShed'], ENT_COMPAT, 'utf-8'),"1"))) {echo "checked=\"checked\"";} ?> />
        <br />
      </span></div>
        <input type="hidden" name="MM_update" value="form3" />
        <input type="hidden" name="userid" value="<?php echo $row_Recordset1['userid']; ?>" />    
    </form>
<div id="ErrorZone"><span class="checkboxRequiredMsg">
  <table width="400" border="1" cellspacing="0" cellpadding="0">
    <tr>
      <td><table width="400" border="0" cellspacing="10" cellpadding="0">
        <tr>
          <td>Agreement:<br /></td>
          </tr>
        <tr>
          <td>By you ticking the box above 'Electronically Sign', you are confirming that you agree</td>
          </tr>
        <tr>
          <td><strong>Terms and Conditions</strong></td>
          </tr>
        <tr>
        <tr>
          <td>I have read and understand the statement above</td>
          </tr>
        </table></td>
      </tr>
  </table>
  </span></div>
  <script type="text/javascript">
var sprycheckbox1 = new Spry.Widget.ValidationCheckbox("sprycheckbox1", {additionalError: 'ErrorZone'});
</script>
i was trying it another way but wanted to try this way aswell so i get a full understanding of it.
thanks in advance

Answer 1

What is the name of the form field you are evaluating in your update statement? What the name of the field on your form? Are they the same?