The PHP file

<?php
header('Content-type: application/json');
header('Access-Control-Allow-Origin: *');
$server = "localhost";

$username = "root";

$password = "";

$database = "jqueryex";

$con = mysql_connect($server, $username, $password);
if($con) { echo "Connected to database!"; }
else { echo "Could not connect!"; }

mysql_select_db($database, $con);

$topost =  file_get_contents('php://input');
$thedata=json_decode($topost, true);
print_r($thedata);

$id = $thedata['id'];
$name = $thedata['name'];
$Address = $thedata['Address'];

    $sql = "INSERT INTO sample (id, name, Address) ";
    $sql .= "VALUES ($id, '$name', '$Address')";
    if (!mysql_query($sql, $con)) {
        die('Error: ' . mysql_error());
    } else {
        echo "Comment added";
    }

    mysql_close();
?>