Re: PHP Notice: Undefined index

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On Fri, May 19, 2006 6:08 pm, John Taylor-Johnston wrote:
> Any idea why this bit of code
>
> if("yes" == $_POST['submitter'])
> {
> mysql_select_db($db,$myconnection);
>
>     $sql = "INSERT INTO `$db`.`$table`
>     (name,email,comments,entrydate)
>     values ('$name','$email','$comments','$entrydate')";
>     mysql_query($sql) or die(print mysql_error());
> }
>
> is provoking this message in my Apache error log?
>
> [Fri May 19 19:05:10 2006] [error] PHP Notice: Undefined index:
> submitter in
> /home/jtjohnston/domains/jtjohnston.ca/public_html/comments.php on
> line 29

Because $_POST['submitter'] is not set?

Because your script assumes it IS set?

Because sometimes your script is called to display the form, before
$_POST['submitter'] has anything in it, and sometimes it's called
after they hit submit and it has something in it?

if (isset($_POST['submitter']) && "yes" == $_POST['submitter']){

http://php.net/isset

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