<?php
if(isset($_POST["user"]) && isset($_POST["password"])) {
    $username = $_POST["user"];
    $password = $_POST["password"];
    echo "$username : $password";
} else {
    echo "Nothing Recieved!";
    echo "GET:<pre>";
    print_r($_GET);
    echo "</pre>";
    echo "POST:<pre>";
    print_r($_POST);
    echo "</pre>";
    echo "SERVER:<pre>";
    print_r($_SERVER);
    echo "</pre>";
}