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makzan/basic-login.php

Created September 29, 2017 13:51
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Basic PHP hardcoded login/logout
Raw
basic-login.php
<?php
session_id("thomas23");
session_start();
// initialize the login name session variable.
$_SESSION["login_name"] = $_SESSION["login_name"] ?? "";
// there is data POST from user.
if (count($_POST) > 0) {
// logout or login?
if (isset($_POST["logout"])) {
$_SESSION["login_name"] = "";
} else if ($_POST["username"] == "thomas" && $_POST["password"] == "1234") {
$_SESSION["login_name"] = "thomas";
}
}
$is_logged_in = ($_SESSION["login_name"] != "");
?>
<html>
<?php if ($is_logged_in): ?>
<h1>
Welcome <?= $_SESSION["login_name"] ?>!
</h1>
<form action="" method="POST">
<input type="submit" name="logout" value="Logout">
</form>
<?php else: ?>
<form action="" method="POST">
<p>
Username<br>
<input type="text" name="username">
</p>
<p>
Password<br>
<input type="password" name="password">
</p>
<input type="submit" value="Login">
</form>
<?php endif ?>
</html>
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