Question

我想在php中提交表单后显示一些通知。我不知道我是否采取了正确的方式...... 我想提交表单，在表单中刷新我的数据并显示通知。

例如，这是我的添加功能：

prepareForReuse()

在我的情况下，没有显示任何内容，我不知道该怎么做。

我的会话类是这样的：

public function addNewPost(){
    $manager = new PostsManager($this->db);
    if(isset($_POST['publish'])){
        if (empty($_POST['title']) || empty($_POST['header']) || empty($_POST['author']) || empty($_POST['content']))
        {
            $_SESSION['addPostDatas'] = $_POST;
            $session = new Session();
            $session->setFlash('"Title", "Header", "Author" and "Content are required and cannot be empty"');
            $session->flash();
            header('Location: '.$_SERVER['REQUEST_URI']);
        }
        else
        { 
            $newpost = new Post([
                        'title' => $_POST['title'],
                        'header' => $_POST['header'],
                        'author' => $_POST['author'],
                        'date' => date("Y-m-d H:i:s"),
                        'content' => $_POST['content'],
                        'featuredImg' => $this->uploadImg()
                        ]); 
            $manager->add($newpost); // Create a new post
            unset($_SESSION['addPostDatas']);
            header('Location: index.php?p=blog');
            $session = new Session();
            $session->setFlash('The post was published !', 'success');
            $session->flash();
        }
    }
}

你能告诉我这样做的方法吗？

非常感谢！

修改

这是我的index.php

Class Session{

    public function __construct(){
        if(!isset($_SESSION)){ 
            session_start(); 
        } 
    }

    public function setFlash($message, $type = 'danger'){
        $_SESSION['flash'] = array(
            'message' => $message,
            'type'    => $type
        );
    }

    public function flash(){
        if(isset($_SESSION['flash'])){
            ?>
            <div id="alert" class="alert alert-<?php echo $_SESSION['flash']['type'] ?>" role="alert">
                 <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>

                <strong><?php print_r($_SESSION['flash']['message']); ?></strong>
            </div>
            <?php
            unset($_SESSION['flash']);
        }
    }

}

我的观点是这样的

require 'vendor/autoload.php';
use natinho68\Models\SPDO as SPDO;

use natinho68\Controllers\Session as Session;
use natinho68\Models\PostsManager as PostsManager;
use natinho68\Controllers\MailController as MailController;
use natinho68\Controllers\Controller as Controller;


$db = new SPDO();
$session = new Session();
$posts = new PostsManager($db);
$contact = new MailController();

// Routing
$page = "home";
if(isset($_GET['p'])){
    $page = $_GET['p'];
}

// Rendu du template

// Chargement des templates dans le dossier templates
$loader = new Twig_Loader_Filesystem(__DIR__ . '/Views');
$twig = new Twig_Environment($loader, [
    'cache' => false, // __DIR__ . '/tmp'
        'debug' => true
    ]);
$twig->addExtension(new Twig_Extension_Debug());

if(!empty($_SESSION['addPostDatas'])){
$twig->addGlobal('addPostDatas', $_SESSION['addPostDatas']);    
}



$controller = new Controller($twig, $db);

switch ($page){

    case 'home' :
    $controller->home('home.twig');
        $contact->mailer();
    break;

    case 'contact' :
    echo $twig->render('contact.twig');
        $contact->mailer();
    break;

    case 'blog':
    echo $twig->render('allPosts.twig', ['allPosts' => $posts->getAllPosts()]);
    break;

    case 'singlepost' :
        $controller->showPost($_GET['id'], 'singlePost.twig');
        break;

        case 'editpost' :
        $controller->showPost($_GET['id'],'editpost.twig');
        $controller->updatePost();
        $controller->deletePost();
    break;

        case 'add-post' :
        $controller->addPostView('addPost.twig');
        $controller->addNewPost();
    break;

    default: 
    header('HTTP/1.0 404 Not Found');
    echo $twig->render('404.twig');
    break;
}

Answer 1

为了检查会话是否已启动，您可以更改代码吗？

public function __construct(){
    if (session_status() == PHP_SESSION_NONE) {
        session_start();
    }
}

我认为$ _SESSION全局变量总是默认设置。

<强> UPD。

正如我注意到的那样，您首先刷新消息然后重定向页面

<强> UPD2

快速重写后，我认为你的addNewPost（）方法必须像这样

public function addNewPost()
{
    $session = new Session();
    $manager = new PostsManager($this->db);
    if (isset($_POST['publish'])) {
        if (empty($_POST['title']) || empty($_POST['header']) || empty($_POST['author']) || empty($_POST['content'])) {
            $_SESSION['addPostDatas'] = $_POST;
            $session->setFlash('"Title", "Header", "Author" and "Content are required and cannot be empty"');
            header('Location: ' . $_SERVER['REQUEST_URI']);
            exit();

        } else {
            $newpost = new Post([
                'title' => $_POST['title'],
                'header' => $_POST['header'],
                'author' => $_POST['author'],
                'date' => date("Y-m-d H:i:s"),
                'content' => $_POST['content'],
                'featuredImg' => $this->uploadImg()
            ]);
            $manager->add($newpost); // Create a new post
            unset($_SESSION['addPostDatas']);
            $session->setFlash('The post was published !', 'success');
            header('Location: index.php?p=blog');
            exit();

        }
    } else {
        $session->flash();
    }
}

请注意，您必须调用$ session = new Session（）; $会话而＆GT;闪速（）;处理成功请求时（index.php？p = blog）

提交php表单后显示flash消息

1 个答案: