<?php
include("data.php");
class Handler
{
    function login($username, $password)
    {
        $data = new data();
        $con = new mysqli($data->servername, $data->username, $data->password, $data->dbname);

        if(!$con)
        {
            die("Connection Problem: " . $con->connect_error);
        }

        $sql = "SELECT * FROM aufgabe02.admins WHERE username='$username' AND password='$password'";
        $result = $con->query($sql);

        if (!$result)
        {
            die("SQL Problem: " . $con->error);
        }

        if ($result->num_rows == 1)
        {
            echo "true";
        }
        else
        {
            echo "false";
        }

        $con->close();
    }
}

    if(isset($_POST["username"]) && isset($_POST["password"]))
    {
        $username = $_POST["username"];
        $password = $_POST["password"];

        $t = new Handler();
        $t->login($username, $password);
    }

?>