<?php
include("includes/function.php");
session_start();

if(isset($_POST['login']))
{
if(isset($_POST['username']))
{
if(isset($_POST['password']))
{
$username = $_POST['username'];
$query = mysql_query("select * from users where Username = '$username'") or die(mysql_error());

$user = mysql_fetch_array($query);

if(md5($_POST['password']) == $user['Password'])
{
echo "Login successful";
$_SESSION['user'] = $user['Username'];
header("Location: index.php");
}
else {
echo "Please check you Login details";
include("login.php");
}

else {
echo "Please check you password";
include("login.php");
}
else {
echo "Please check your username";
include("login.php");

}
else {
echo "Please check that you filled out the login form";
include("login.php");
}
}
}
}


?>

note::
is there a problem after first else??

i used else if but also no any correction found

Greetings,

You are missing some } and the 3 } at the end are not needed.
If when starting an if statement you start it like this;
then the { needs to be closed BEFORE any else, if an else is required.

ye thanks it worked.. Hats off!! :)