<?php session_start(); /* Starts the session */
/* Check Login form submitted */if(isset($_POST['Submit'])){
/* Define username and associated password array */$logins = array('admin' => 'password','username1' => 'password1','username2' => 'password2');

/* Check and assign submitted Username and Password to new variable */$Username = isset($_POST['Username']) ? $_POST['Username'] : '';
$Password = isset($_POST['Password']) ? $_POST['Password'] : '';

/* Check Username and Password existence in defined array */if (isset($logins[$Username]) && $logins[$Username] == $Password){

/* Success: Set session variables and redirect to Protected page  */$_SESSION['UserData']['Username']=$logins[$Username];
header("location:index.php");
} else {
/*Unsuccessful attempt: Set error message */$msg="Username atau Password Salah";
}
}
?>