MIMIMI DIDDIDI

<?php

function error($str){
	$feedback = '<html><head></head><body>'.$str.'</body></html>';
}

function success($str){

}

$db = mysqli_connect("localhost","root","","login") or die(error(mysqli_error($db)));

if($_POST['usecase'] == "login"){
	$username = $_POST['username'];
	$password = $_POST['password'];
	$query = "SELECT * FROM nutzer WHERE Username = '$username' AND Password = '$password'";
	$res = mysqli_query($db,$query) or die(error(mysqli_error($db)));
	$anz = mysqli_num_rows($res);
	var_dump($anz);
}else if($_POST['usecase'] == "register"){
	$username = $_POST['username'];
	$password = $_POST['password'];
	$query = "INSERT INTO nutzer VALUES ('$username','$password')";
	$res = mysqli_query($db,$query) or die(error(mysqli_error($db)));
	var_dump($res);
}

?>