php undefined index meaNING code example
Example: php undefined index meaNING
$_SESSION['yy'] = isset($_POST['yy']) ? $_POST['yy'] : ""; // This is on line 11
$_SESSION['mm'] = isset($_POST['mm']) ? $_POST['mm'] : ""; // This is on line 12
$_SESSION['dd'] = isset($_POST['dada']) ? $_POST['dada'] : ""; // This is on line 13