[RESOLVED] Notice: Undefined index

[leagal4ever]

I have stuck at those notices.

$ID = $_GET['ID'];

if (!$ID) {
// code
}

[leatherback]

The undefined index refers to the index 'ID' in your $GET statement when no ID is defined. If you lower the error message levels it will disappear. However, neater would be to do: if(isset($GET['id']))
{
$id = $_GET['id'];
}

[NogDog]

Another common idiom is to do something like:

$id = (isset($_GET['ID'])) ? $_GET['ID'] : "some default value here";

[bradgrafelman]

And in case you're wondering, NogDog's example utilizes the ternary operator to save you some space/keystrokes.