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<?php
// Enable error reporting while debugging
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$dataFile = __DIR__ . '/guestbook.json';
// Make sure the JSON file exists
if (!file_exists($dataFile)) {
file_put_contents($dataFile, json_encode([]));
}
// Read existing entries safely
$data = [];
$fileContents = file_get_contents($dataFile);
if ($fileContents !== false) {
$decoded = json_decode($fileContents, true);
if (is_array($decoded)) {
$data = $decoded;
}
}
// Handle form submission
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// Honeypot spam field
if (!empty($_POST['website'])) {
header("Location: guestbook.php");
exit;
}
$name = trim($_POST['name']);
$message = trim($_POST['message']);
if ($name && $message) {
$entry = [
"id" => time(),
"name" => substr($name, 0, 50),
"message" => substr($message, 0, 500),
"timestamp" => date("c")
];
// Add new entry at the beginning
array_unshift($data, $entry);
// Save back to JSON file
if (file_put_contents($dataFile, json_encode($data, JSON_PRETTY_PRINT)) === false) {
echo "<p style='color:red'>Error: Could not save guestbook entry. Check file permissions.</p>";
}
// Redirect to avoid form resubmission
header("Location: guestbook");
exit;
}
}
// Entries to display
$entries = $data;
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Guestbook</title>
<link rel="stylesheet" href="../style.css">
</head>
<body>
<canvas id="bg"></canvas>
<div class="container">
<h1>256phi Guestbook</h1>
<form method="POST">
<input type="text" name="name" placeholder="Your name" required>
<textarea name="message" placeholder="Leave a message..." required></textarea>
<!-- Honeypot -->
<input type="text" name="website" style="display:none">
<button type="submit">Sign</button>
</form>
<hr>
<?php foreach ($entries as $entry): ?>
<div class="entry">
<p><?= htmlspecialchars($entry['message']) ?></p>
<small>
— <?= htmlspecialchars($entry['name']) ?>
| <?= date("Y-m-d H:i", strtotime($entry['timestamp'])) ?>
</small>
</div>
<?php endforeach; ?>
<footer>
<p>© 256phi | 2026 | <a href="/home">Home</a></p
</footer>
</div>
<script type="module" src="../main.js"></script>
</body>
</html>
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