HELP WITH ARRAYS

[ladieballer2004]

Ok so here it goes: I have an array that is attached to a web form. It's function is to ask the user what she has been involved in. There are 3 rows with 4 columns each. The user is required to fill out at least one row but not all three.
Here is the problem. When I test it out all three rows are entered into the database wether they hold information or not. How do I get the parser to recognize when a row is blank and ignore it before the info is inserted into the database?

Here is the PHP Code for the Array
foreach($POST['Activity'] as $row=>$Act)
{
$Activity=($Act);
$Position=($POST['Position'][$row]);
$StartDate=($POST['StartDate'][$row]);
$EndDate=($POST['EndDate'][$row]);
if ($row=="")
{$row=="NULL";}

$involv = "INSERT INTO Involvement (Activity, Position, StartDate, EndDate)
VALUES ('$Activity','$Position','$StartDate','$EndDate')";

Thanks in advance

[dagon]

if the value is empty then the db field will be empty, i don't see the issue.

[m00f]

Put an ISSET if statement around the insert?

[dagon]

m00f;10927519 wrote:

Put an ISSET if statement around the insert?

since this is 3 weeks old i suspect the op has solved it by now.