Notes/note.php at master · mangusek/Notes · GitHub

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<?php

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (isset($_POST['delete'])) {
        $name = $_POST['name'];

        if (file_exists("notes/$name.txt")) {
            unlink("notes/$name.txt");
        }

        header('Location: index.php');
        exit;
    }

    $name = trim($_POST['name']);
    $author = trim($_POST['author']);
    $content = $_POST['content'];

    if ($name !== '') {
        file_put_contents(
            "notes/$name.txt",
            $author . "\n" . $content
        );

        header('Location: note.php?file=' . urlencode($name));
        exit;
    }
}

$name = $_GET['file'] ?? '';
$author = '';
$content = '';

if ($name !== '' && file_exists("notes/$name.txt")) {
    $lines = file("notes/$name.txt");
    $author = trim($lines[0] ?? '');
    $content = implode('', array_slice($lines, 1));
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Note: <?php echo htmlspecialchars($name); ?></title>
</head>
<body>

<form method="post">
    <input
        type="text"
        name="name"
        placeholder="note name"
        value="<?php echo htmlspecialchars($name); ?>"
    >
    <input
    type="text"
    name="author"
    placeholder="author"
    value="<?php echo htmlspecialchars($author); ?>"
>

    <br><br>

    <textarea name="content" rows="20" cols="80"><?php
echo htmlspecialchars($content);
?></textarea>

    <br><br>

    <button type="submit">Save</button>

<button
    type="submit"
    name="delete"
    value="1"
    onclick="return confirm('Delete note?')"
>
    Delete
</button>
</form>

<br>

<a href="index.php">Back</a>

</body>
</html>