Undefined index in PHP post

Question

I take a form and do variable checking in jquery then pass it to a php file in ajax but I am getting this notice

Notice: Undefined index: your_name in C:\\xampp\\htdocs\

Answer 1

You are getting value of your_name first and then checking if it exists

$your_name=$_POST["your_name"];  <--- this line should be inside an if isset
if(!isset($_POST['your_name'])){

Do something like the following

if (isset($_POST['your_name'])) {
   $your_name = $_POST['your_name'];
   // do whatever here
}