Undefined index error/notice in text box ... kindly help me

[amir4oracle]

The following Code is giving the following Error/notice "Undefined index" in the text box f_name ... kindly help me:

-----------------------------------------------------------------------------

CODE:


1 <?
2
3 if (isset ($_POST['submit']))
4 {
5 $message = NULL;
6
7 if (strlen ($_POST['f_name']) > 0)
8 {
9 $f_name = TRUE;
10 }
11 else
12 {
13 $f_name = FALSE;
14 $message = '<p>You forgot to enter name.</p>';
15 }
16 }
17
18 ?>
19
20 <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
21
22 Name: <input type="text" name="f_name" size="20" maxlength="40" value="<?php echo ($_POST ['f_name']); ?>" />
23
24 <input type="submit" name="submit" value="Submit Information"/>
25
26 </form>


-----------------------------------------------------------------------------

Error/notice:


<br /><b>Notice</b>: Undefined index: f_name in <b>c:\inetpub\

http://wwwroot\phpwork\LU\test.php</b>

on line <b>22</b><br />

 

[sleipnir214]

That's a pretty straightforward error.

At the time the variable is references, $_POST['f_name'] does not exist.

One line in the script:

if (isset ($_POST['submit']))

implies to me that this script expects that sometimes there will be nothing in $_POST. But the line that uses $_POST['f_name'] assumes the variable will always be there.

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