login_proses

<?php
include "koneksi.php";
	$username = $_POST['username'];
	$password = $_POST['password'];

if (empty($username)) {
	echo "<script>alert('Username cannot be empty.')</script>";
	echo "<meta http-equiv='refresh' content='1 url=login.php'>";
}

else if (empty($password)){
	echo "<script>alert('Password cannot be empty.')</script>";
	echo "<meta http-equiv='refresh' content='1 url=login.php'>";
}

else {
	session_start();
	$login = mysql_query("select * from users where username='$username' and password='$password'");

	if (mysql_num_rows($login) > 0) {
		$_SESSION['username'] = $username;
		header["Location : library/HTML/HOMEmember.php"];
	}

	else {
		echo "<script>alert('Username or Password is incorrect.')</script>";
		echo "<meta http-equiv='refresh' content='1 url=login.php'>";
	}
}
?>