Untitled

<?php
if( $_SESSION['auth'] != 1 ) {
    require( 'login.php' );
}
else {
    echo "hello";
}
?>

<?php
$name = $_POST['name'];
$pass = $_POST['pass'];

if( isset($name) || isset($pass) )
{
    if( empty($name) ) {
        die ("ERROR: Please enter username!");
    }
    if( empty($pass) ) {
        die ("ERROR: Please enter password!");
    }


    if( $name == "<some name>" && $pass == "<some password>" )
    {
        // Authentication successful - Set session
        session_start();
        $_SESSION['auth'] = 1;
        setcookie("username", $_POST['name'], time()+(84600*30));
        echo "Access granted!";
    }
    else {
        echo "ERROR: Incorrect username or password!";
    }
}


// If no submission, display login form
else {
?>
    <html>
    <head></head>
    <body>
    <center>
    <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
    Username: <input type="text" name="name" value="<?php echo $_COOKIE['username']; ?>">
    <p />
    Password: <input type="password" name="pass">
    <p />
    <input type="submit" name="submit" value="Log In">
    </center>
    </body>
    </html>
<?php
}
?>

header('Location: index.php');
exit;

session_start();
if (!isset($_SESSION['auth']) || $_SESSION['auth'] != 1) {
   header('Location: login.php');
   exit();
}
echo 'Hello';

session_start();
if( $name == "<some name>" && $pass == "<some password>" )
{
// Authentication successful - Set session
   $_SESSION['auth'] = 1;
   setcookie("username", $_POST['name'], time()+(84600*30));
   header('Location: index.php');
   exit();
}
else {
  echo "ERROR: Incorrect username or password!";
}

$name = isset($_POST['name']) ? $_POST['name'] : '';

$_SESSION['user'] = 'John';

header('Location: index.php');
exit;

<?php
session_start();
if (empty($_SESSION['user'])) {

    $name = isset($_POST['name']) ? $_POST['name'] : '';
    $pass = isset($_POST['pass']) ? $_POST['pass'] : '';

    if ($name != '' || $pass != '')
    {
        if ($name === '')
            die("ERROR: Please enter the username!");

        if ($pass === '')
            die("ERROR: Please enter the password!");

        if ($name == "test" && $pass == "test") {

            // authentication successful, save username in session:
            $_SESSION['user'] = 'John';

            // redirect to index.php to welcome the logged in user:
            header('Location: index.php');
            exit;
        }
        else {
            die("ERROR: Incorrect username or password!");
        }
    }

    // no submitted data, display form:
    ?>
        <html>
        <head></head>
        <body>
            <center>
            <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
            Username: <input type="text" name="name" value=""><br>
            Password: <input type="password" name="pass"><br>
            <input type="submit" value="Log In">
            </form>
            </center>
        </body>
        </html>
    <?php
}
else {
    // info about current user is stored in session, welcome this user:
    echo "hello " . $_SESSION['user'];
}
?>

if( $name == "<some name>" && $pass == "<some password>" )
{
    // Authentication successful - Set session
    session_start();
    $_SESSION['auth'] = 1;
    setcookie("username", $_POST['name'], time()+(84600*30));
    //echo "Access granted!";
    header("Location: index.php");
    die('');
}

$_SESSION['user']=$_POST['name'];

if (isset($_SESSION['user']))
    echo "Hello, " . $_SESSION['user'];

if($_SESSION['auth'] != 1) {
    require('login.php');
}
// Either way always print.
echo "hello";