php registration

Hello i've come into a bit of a problem, I have a dedicated server and i'm hosting a game off of it now the character registration page has an ugly error on it which says

Notice: Undefined index: action in C:\xampp\htdocs\index.php on line 55

Not sure on how to fix this

Any help is appreciated

Thanks

Mark

This is a coding issue, nothing at all to do with php's configuration.

What's on or around line 55 on file index.php ?

sorry for posting in the wrong forum

heres around line 55

  </td>

        </tr>

      </table>

      <br>

      <table width="350" border="0" align="center" cellpadding="0" cellspacing="0">

        <tr>

          <td align="center" bgcolor="white" style="border-bottom: solid 1px #cecece; border-top: solid 1px #cecece; border-left: solid 1px #cecece; border-right: solid 1px #cecece" class="padding_all">

<?

    if($_POST['action'])!=("signup")

    {

?>

            <form method="post" onSubmit="disabledBttn(this)" action="<?=$_SERVER[php_SELF]."?id=reg

".$_SERVER[QUERY_STRING]?>">

If you have skype add me on wowzer1011

Thanks

Change:

if($_POST['action'])!=("signup")

to

if(!isset($_POST['action']) || $_POST['action'] != "signup")

Nothing changed upon changed that

Make sure everything is defined and put php after your <? to make it <?php

Personally, I like to have a seperate page for processing my information. It seems to help me stay away from errors.

For example, you would have your register.html where your form is. In the <form> tag, put register-exec.php (for example), and have all your php there. Then if all looks good in the registration put:

header("location: members.php");

Just my personal preference.

thorpe - using OR will cause both conditions to be checked

 if( !isset($_POST['action']) || (isset($_POST['action']) && $_POST['action'] != "signup") ) 

The logic is a little complicated, and to fix that you should check if a variable is something, rather than isn't.