留言板php模板

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>留言板</title>
</head>
<body>
    <h1>留言板</h1>
    <form action="submit_message.php" method="post">
        <textarea name="message" rows="4" cols="50"></textarea><br>
        <input type="submit" value="提交">
    </form>

    <?php
    // 假设messages是从数据库中获取的留言数组
    $messages = [
        "第一条留言",
        "第二条留言",
        "第三条留言"
    ];

    foreach ($messages as $message) {
        echo "<p>$message</p>";
    }
    ?>
</body>
</html>

// 示例数据库连接代码
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

$sql = "SELECT message FROM messages";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "<p>" . $row["message"] . "</p>";
    }
} else {
    echo "0 结果";
}
$conn->close();

// 示例submit_message.php文件
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

$message = $_POST['message'];
$sql = "INSERT INTO messages (message) VALUES ('$message')";

if ($conn->query($sql) === TRUE) {
    echo "新留言发布成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>