Playground

On this page, we test multiple plugins and Markdown Extra features.

FEN chess

这是标准的西班牙开局（Ruy Lopez）。

Markdown Notices

Math Equations

\(a^2+b^2=c^2\)

Code Highlight

<?php

namespace App\Controller;

use App\Service\BookService;
use App\Service\ContentService;
use Psr\Log\LoggerInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;

/**
 * ApiController - AJAX 控制器
 * 处理动态内容更新的 AJAX 请求
 * 
 * 需求覆盖:
 * - 4.3, 4.4: 每日内容刷新的 JSON API
 * - 2.3: 随机图书刷新功能
 */
class ApiController extends AbstractController
{
    private BookService $bookService;
    private ContentService $contentService;
    private LoggerInterface $logger;

    public function __construct(
        BookService $bookService,
        ContentService $contentService,
        LoggerInterface $logger
    ) {
        $this->bookService = $bookService;
        $this->contentService = $contentService;
        $this->logger = $logger;
    }