#留言板（六）#留言功能实现

前言

• 部分代码参考了一个大佬的：链接戳一戳

代码实现

connect_error){
	   echo '数据库连接失败！';
       exit(0);
    }
    session_start();
    if (!isset($_SESSION['username'])) {
        die('');
    }
    $title = $_POST['title'];
    $content = $_POST['content'];
    mysqli_select_db($con, 'mess');      
    mysqli_set_charset($con, 'utf-8'); 
    if ($_POST['title'] && $_POST['content']) {
        $sql = "insert into mess(user, title, content)values('$user','$title','$content')";
        $result = mysqli_query($con, $sql);

        if ($result) {
            echo '';
            mysqli_close($con);
        } else {
            die('添加失败！');
        }
    }
?>