category.php

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<?php
require_once __DIR__ . '/core/Session.php';
require_once __DIR__ . '/core/Security.php';
require_once __DIR__ . '/core/Pagination.php';
require_once __DIR__ . '/app/models/Post.php';
require_once __DIR__ . '/app/models/Category.php';
require_once __DIR__ . '/app/models/Tag.php';
require_once __DIR__ . '/app/models/Comment.php';
require_once __DIR__ . '/app/models/Setting.php';
require_once __DIR__ . '/app/models/Page.php';

Session::start();

$id = (int)($_GET['id'] ?? 0);
$page = max(1, (int)($_GET['page'] ?? 1));

$categoryModel = new Category();
$postModel = new Post();
$tagModel = new Tag();
$commentModel = new Comment();
$settingModel = new Setting();

$category = $categoryModel->find($id);

if (!$category || !$category['status']) {
    header('HTTP/1.0 404 Not Found');
    include '404.php';
    exit;
}

$settings = $settingModel->getAllSettings();
$categories = $categoryModel->getActiveCategories();
$popularTags = $tagModel->getPopularTags(15);
$recentPosts = $postModel->getRecentPosts(5);

$categoryIds = $categoryModel->getChildIds($id);
$result = $postModel->getByCategories($categoryIds, $page, $settings['posts_per_page'] ?? PER_PAGE);
$posts = $result['items'];
$pagination = $result['pagination'];

function getSetting($key, $default = '') {
    global $settings;
    return $settings[$key] ?? $default;
}

$currentCategoryId = $id;
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title><?php echo Security::cleanXSS($category['name']); ?> - <?php echo Security::cleanXSS(getSetting('site_title', 'PHP个人博客')); ?></title>
    <meta name="description" content="<?php echo Security::cleanXSS($category['description'] ?? $category['name']); ?>">
    <link rel="stylesheet" href="assets/css/style.css">
</head>
<body>
    <?php include 'views/partials/header.php'; ?>
    
    <main class="site-main">