On my site, a user gets email notifications when someone comments on their profile, or comments on their blog etc...I have made a email settings page that has checkboxes to allow the user to decide to receive emails or not.

This is what I am wrapping around the email notification code chunck for the pages that have the php mail:

    <?php if(isset($_POST['email_toggle']) && $_POST['email_toggle'] == 'true') { if(isset($_POST['commentProfileSubmit']) && $auth) {

     $query etc
     $to = etc


  }
}

My question is what do I put on the email settings script that has the actual check boxes to make them stay checked or unchecked once you submit your settings? Another words what do I put in the if(isset portion to implement the changes?

if(isset($_POST['email_toggle']) && $_POST['email_toggle'] == 'true') {

/* what do I put here? */

header("Location: Profile.php?id=" . $auth->id);
 mysql_query($query,$connection);

/* input/check boxes and submit button */

<tr>
 <td class="email_check">
  <input type="checkbox" name="email_toggle" value="true" checked="checked" /> Receive email Notifications When Someone Answers A Question You've Answered
 </td>
</tr>
<tr>
 <td>
  <input style="margin:10px 0px 0px 10px;" class="submit" type="submit" name="email_toggle" value="Save Settings" />
 </td>
</tr>
}