Fatal and notice error

[TweetyPie]

ive got 2 errors that are displayed on the browser:

Notice: Undefined variable: jnum in C:\Inetpub\wwwroot\disso\jobs2.php on line 8

this is at the top of the page,

Second error:
Fatal error: Call to undefined function: form_d() in C:\Inetpub\wwwroot\disso\jobs2.php on line 34

when the following file is uploaded:

<?
include 'db_param.php';
include 'common.php';
include 'header.inc.php';
if (!isset($_POST['jnum']) || $_POST['jnum'] == "")
$link = mysql_connect($db_h, $db_u, $db_p) or exit ("Unable to connect!");
mysql_select_db($db) or exit ("Could not connect to database"); 

[THIS LINE BELOW IS LINE 8]

$sql = "SELECT job.j_title, job.j_num, depart.dep, location.location, salary.salary, job.j_resp, job.j_req, job.j_cont, job.cont_mail, job.posted from job, depart, location, salary WHERE depart.d_id = job.depart AND location.l_id = job.location AND salary.s_id = job.salary AND job.j_num = '$jnum'";         

$query = mysql_query($sql) or exit ("Error in query: $sql. " . mysql_error());
if (mysql_num_rows($query) <= 0)

list($jtitle, $jnum, $department, $location, $salary, $jresp, $jreq, $jcont, $contmail, $posted) = mysql_fetch_row($query);
mysql_close($link);
?>

 <br>
<!-- print job details -->
<b>Job Title:</b> <? echo $jtitle; ?>
<p>
<b>Job number:</b> <? echo $jnum; ?>
<p>
<b>Department:</b> <? echo $department; ?>
<p>
<b>Location:</b> <? echo $location; ?>
<p>
<b>Salary:</b> <? echo $salary; ?>
<p>
<b>Responsibilities:</b> <? echo $jresp; ?>
<p>
<b>Qualifications:</b> <? echo $jreq; ?>
<p>
<b>Contact:</b> <a href=mailto: <? echo $contmail; ?> <? echo $jcont; ?></a>
<p>
<b>Posted on:</b> <? echo form_d($posted); ?>        [THIS IS LINE 34]
<p>

Can some one help, how can i resolve this?

[coreyp_1]

For the first error, registered Globals is probably off. Use {$_POST['jnum']} instead.

For the second error, where is the function form_d() defined?

[TweetyPie]

ive got rid of the second error, i still cant resolve the first one:

Notice: Undefined variable: jnum in C:\Inetpub\wwwroot\disso\jobs2.php on line 8

Iv got it as

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

that is the same as what you said right with using

{$_POST['jnum']} 

[coreyp_1]

Yes, but I was talking about replacing $jnum at the end of you Query statement.

$sql = "SELECT job.j_title, job.j_num, depart.dep,
location.location, salary.salary, job.j_resp, job.j_req,
job.j_cont, job.cont_mail, job.posted from job, depart,
location, salary
WHERE depart.d_id = job.depart AND location.l_id = job.location
AND salary.s_id = job.salary AND job.j_num = '{$_POST['jnum']}'";

[TweetyPie]

That didnt change anything, the error still comes up.

Notice: Undefined index: jnum in C:\Inetpub\wwwroot\disso\jobs2.php on line 8

Line 8 still being the same line:

$sql = "SELECT job.j_title, job.j_num, depart.dep, location.location, salary.salary, job.j_resp, job.j_req, job.j_cont, job.cont_mail, job.posted from job, depart, location, salary WHERE depart.d_id = job.depart AND location.l_id = job.location AND salary.s_id = job.salary AND job.j_num = '{$_POST['jnum']}'";

[coreyp_1]

Actually it did change something... the error.

First it was an undefined variable, now, it is an undefined index.

That makes it sound like there is no "jnum" in $_POST.

Use print_r() to see what all is being passed in the $_POST variable, and see if this is a spelling error, or if the information is just not coming up at all.

[Weedpacket]

From what I can see, you only try to connect to the database if $POST['jnum'] is empty. Don't you mean you want to do it if $POST['jnum'] is not empty?

Because what you're saying on those two lines is basically "If $_POST['jnum'] is empty, connect to this database server. If the connection fails, exit." I don't really understand the reasoning there.

Either way, it doesn't stop you from trying to use $_POST['jnum'] later on even if it isn't set; which would be when you get the error.