<?php
session_start();
if ( isset( $_POST["login"]) ) {
login();
} elseif ( isset ( $_GET["action"]) and $_GET["action"] == "logout") {
logout();
}elseif ( isset ( $_SESSION["username"])) {
displayPage();
}else{
displayLoginForm();
}
function login(){
$username = "gagas";
$passwd = "23170f89";
if (isset ( $_POST["username"]) and isset ($_POST["password"])) {
echo $_POST ["username"];
if ($_POST["username"] == $username and $_POST["password"] == $passwd ){
$_SESSION["username"] = $username;
session_write_close();
header("Location : login.php");
}else{
displayLoginForm ("username/password Tidak cocok");
}
}
}
function logout(){
unset($_SESSION["username"]);
session_write_close();
header("Location: login.php");
}
function displayPage(){
displayPageHeader();
?>
<p>Welcome, <strong><?php echo $SESSION["username"] ?></strong> Anda sudah Berhasil Login.</p>
<p><a href="login.php?action=logout">Logout</a></p>
</body>
</html>
<?php
}
function displayLoginForm($message=""){
displayPageHeader();
?>
<?php if($message)
echo '<p class="error">' . $message . '</p>';
?>
<form action="login.php" method="post">
<div style= "width: 30em;">
<label for = "username">Username</label>
<input type="text" name="username" id="username" value=""/>
<label for="password">Password</label>
<input type="password" name="password" id="password" value=""/>
<div style="clear: both;">
<input type="submit" name="login" value="Login"/>
</div>
</div>
</form>
</body>
</html>
<?php
}
function displayPageHeader(){
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml/DTD/xhtml-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="on" lang="on">
<head>
<title> A Login Form</title>
<link rel="stylesheet" type="text/css" href="common.css" />
<style type="text/css">
.error{ background: #d33; color: white; padding: 0.2em; }
</style>
</head>
<body>
<h1>Silahkan Login</h1>
<?php
}
?>
Ketik kode berikut dan simpan dengan nama common.css pada root direktori web server
/*Page Body */
body {font-family : Arial,helvetia,sans-serif;}
/*definition lists*/
dl { width:100%; margin:2em 0; padding: 0; clear: both; overflow:auto; }
dt { width:30%; float : left ; margin:0; padding: 5px 9.9% 5px 0; 0 order-top:1px solid #DDDDB7; font-weight:bold; overflow:auto; clear:left; }
dd { width : 60%; float :left; margin:0; padding:6px 0 5px 0; border-top:1px solid #DDDDB7; overflow:auto; }
/*headings*/
h1{ font-weight:bold; margin:35px 0 14px; color:#666; font-size:1.5em; }
h2{ font-weight:bold; margin:30px 0 12px; color:#666; font-size:1.3em; }
h3{ font-weight:normal; margin:30px 0 12px; color:#666; font-size:1.2em; }
h4{ font-weight:bold; margin:25px 0 12px; color:#666; font-size:1.0em; }
h5{ font-weight:bold; margin:25px 0 12px; color:#666; font-size:0.9em; }
/*form*/
label { display:block; float:left; clear:both; text-align:right; margin:0.6em 5px 0 0; width: 40%; }
input,select,textarea { float:right; margin:1em 0 0 0; width:57%; }
input {border:1px solid #666; }
input[type=radio], iinput[type=checkbox],input[type=submit],input[type=reset],input[type=button],input[type=image]{
width:auto;
}
Outputnya :
jika sukses :
Tidak ada komentar:
Posting Komentar