Jibango
file_$local_id.php

<?php
session_cache_limiter('nocache');
session_start();
if (!isset($_SESSION["local_id"])){
$no_login_url = "https://{$_SERVER["HTTP_HOST"]}/open_login.php";
header("Location: {$no_login_url}");
exit;
}
$local_id=$_SESSION["local_id"];
?>
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>sample</title>
<link rel="stylesheet" href="../style.css">
</head>
<body>
<header>
<p>sample</p>
</header>
<main>
<p><?=htmlspecialchars($local_id, ENT_QUOTES); ?></p>
</main>
<footer>
</footer>
</body>
</html>
exit