Undefined index in PHP

itemprop="text">

Good
day!

I am having the following error in my
code:

if
            (!$_POST['SUBMIT']){ //ERROR: Undefined index
?>
 
Add
            Employee
 

             cellpadding="2">


            width="100">SSN
 


            width="100"> 
 


 
 
            id="SSN">
 
 
 
            type="SUBMIT" id="ADD" value="ADD">
 
            
 

 
            }
 else {
 //code here

            }
?>

How
can I remove the error above? Thank you.

class="post-text" itemprop="text">

class="normal">Answer

It should be a notice and not an
error.

To fix is you'll have to check whether
$_POST['submit'] is
set:

if(!isset($_POST['submit']))
            {
 ...
}