Login and Logout is a must have feature if you are creating a website.
In PHP, I can show you the basic method and mechanism of Login and Logout without any database, at this point.
Watch the video tutorial here:
Here is the source code:
<!DOCTYPE html>
<html>
<head>
<title>PHP Login and Logout</title>
</head>
<body>
<?php
session_start();
if(isset($_GET["logout"])){
session_destroy();
}
$username = "habibie";
$password = "somepassword";
if(isset($_POST["username"]) && isset($_POST["password"])){
if($_POST["username"] == $username && $_POST["password"] == $password){
echo "<p style='color: green;'>Login Success!</p>";
$_SESSION["user"] = $_POST["username"];
}else{
echo "<p style='color: red;'>Login failed!</p>";
}
}
if(isset($_SESSION["user"]) && $_SESSION["user"] == $username){
?>
<p>Welcome. You are loged in. Click <a href="?logout">here</a> to logout.</p>
<?php
}else{
?>
<form method="post">
<label>Username</label>
<input name="username" type="text"><br>
<label>Password</label>
<input name="password" type="password"></br>
<input type="submit" value="Login">
</form>
<?php
}
?>
</body>
</html>