init: 我的博客项目
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<?php
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if (session_status() === PHP_SESSION_NONE) { session_start(); }
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function current_user() {
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if (!empty($_SESSION["user_id"])) {
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$st = db()->prepare("SELECT * FROM users WHERE id=?");
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$st->execute([$_SESSION["user_id"]]);
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return $st->fetch();
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}
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return null;
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}
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function is_login() {
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return !empty($_SESSION["user_id"]);
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}
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function is_admin() {
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$u = current_user();
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return $u && $u["role"] === "admin";
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}
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function require_admin() {
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if (!is_admin()) {
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header("Location: " . SITE_URL . "login.php");
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exit;
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}
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}
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function attempt_login($username, $password) {
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$st = db()->prepare("SELECT * FROM users WHERE username=?");
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$st->execute([$username]);
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$user = $st->fetch();
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if ($user && password_verify($password, $user["password_hash"])) {
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$_SESSION["user_id"] = $user["id"];
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return true;
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}
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return false;
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}
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function logout() {
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unset($_SESSION["user_id"]);
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}
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@@ -0,0 +1,16 @@
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<?php
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define("SITE_NAME", "我的博客");
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define("SITE_DESC", "欢迎访问");
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define("SITE_URL", "/myblog/");
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define("UPLOAD_DIR", __DIR__ . "/../uploads/");
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define("DB_HOST", "127.0.0.1");
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define("DB_NAME", "myblog");
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define("DB_USER", "root");
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define("DB_PASS", "root");
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define("DB_CHARSET", "utf8mb4");
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error_reporting(E_ALL);
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ini_set("display_errors", "1");
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date_default_timezone_set("Asia/Shanghai");
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@@ -0,0 +1,19 @@
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<?php
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require_once __DIR__ . "/config.php";
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function db() {
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static $pdo = null;
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if ($pdo === null) {
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$dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=" . DB_CHARSET;
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try {
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$pdo = new PDO($dsn, DB_USER, DB_PASS, [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_EMULATE_PREPARES => false,
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]);
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} catch (PDOException $e) {
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die("数据库连接失败: " . htmlspecialchars($e->getMessage()));
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}
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}
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return $pdo;
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}
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@@ -0,0 +1,8 @@
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</main>
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<?php include __DIR__ . "/sidebar.php"; ?>
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</div>
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</div>
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<div class="footnote"><?php echo e(SITE_NAME); ?> · 用心记录生活</div>
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<script src="<?php echo e(SITE_URL); ?>assets/js/main.js"></script>
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</body>
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</html>
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@@ -0,0 +1,62 @@
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<?php
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require_once __DIR__ . "/db.php";
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function e($str) {
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return htmlspecialchars((string)$str, ENT_QUOTES, "UTF-8");
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}
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function slugify($text) {
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$text = strtolower(trim($text));
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$text = preg_replace("/[^a-z0-9]+/", "-", $text);
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$text = trim($text, "-");
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return $text !== "" ? $text : "post-" . uniqid();
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}
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function get_categories() {
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return db()->query("SELECT * FROM categories ORDER BY id")->fetchAll();
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}
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function get_all_tags() {
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return db()->query("SELECT t.*, COUNT(at.article_id) cnt FROM tags t LEFT JOIN article_tags at ON t.id=at.tag_id GROUP BY t.id ORDER BY cnt DESC")->fetchAll();
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}
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function get_article_tags($articleId) {
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$st = db()->prepare("SELECT t.* FROM tags t JOIN article_tags at ON t.id=at.tag_id WHERE at.article_id=?");
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$st->execute([$articleId]);
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return $st->fetchAll();
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}
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function get_archives() {
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$sql = "SELECT DATE_FORMAT(created_at, ?) ym, COUNT(*) cnt FROM articles WHERE status=? GROUP BY ym ORDER BY ym DESC";
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$st = db()->prepare($sql);
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$st->execute(["%Y年%m月", "published"]);
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return $st->fetchAll();
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}
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function record_visit($page) {
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$ip = $_SERVER["REMOTE_ADDR"] ?? "";
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$ua = substr($_SERVER["HTTP_USER_AGENT"] ?? "", 0, 250);
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$st = db()->prepare("INSERT IGNORE INTO visitor_stats (visit_date, ip, page, ua) VALUES (CURDATE(), ?, ?, ?)");
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$st->execute([$ip, $page, $ua]);
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}
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function paginate($total, $page, $perPage) {
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$pages = max(1, (int)ceil($total / $perPage));
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$page = max(1, min($pages, (int)$page));
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return [
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"page" => $page,
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"pages" => $pages,
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"offset" => ($page - 1) * $perPage,
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"perPage" => $perPage,
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];
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}
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function markdown($text) {
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static $parsedown = null;
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if ($parsedown === null) {
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require_once __DIR__ . "/Parsedown.php";
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$parsedown = new Parsedown();
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$parsedown->setBreaksEnabled(true);
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}
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return $parsedown->text((string)$text);
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}
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@@ -0,0 +1,41 @@
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<?php
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require_once __DIR__ . "/config.php";
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require_once __DIR__ . "/functions.php";
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require_once __DIR__ . "/auth.php";
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$curPage = isset($pageName) ? $pageName : "";
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$navCats = get_categories();
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$navTags = get_all_tags();
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$navArch = get_archives();
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?>
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<!DOCTYPE html>
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<html lang="zh-CN" data-theme="light">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title><?php echo isset($pageTitle) ? e($pageTitle) . " - " . SITE_NAME : SITE_NAME; ?></title>
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<meta name="description" content="<?php echo e(SITE_DESC); ?>">
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<link rel="stylesheet" href="<?php echo e(SITE_URL); ?>assets/css/style.css">
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</head>
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<body>
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<div class="bg"></div>
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<nav class="glass-nav">
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<div class="nav-brand"><a href="<?php echo e(SITE_URL); ?>index.php">我的博客</a></div>
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<div class="nav-links">
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<a class="nav-link<?php echo $curPage==="index"?" active":""; ?>" href="<?php echo e(SITE_URL); ?>index.php">首页</a>
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<?php foreach ($navCats as $c) { ?>
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<a class="nav-link<?php echo isset($curCategory) && $curCategory==$c["id"]?" active":""; ?>" href="<?php echo e(SITE_URL); ?>category.php?id=<?php echo (int)$c["id"]; ?>"><?php echo e($c["name"]); ?></a>
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<?php } ?>
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<a class="nav-link<?php echo $curPage==="archive"?" active":""; ?>" href="<?php echo e(SITE_URL); ?>archive.php">归档</a>
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<a class="nav-link<?php echo $curPage==="about"?" active":""; ?>" href="<?php echo e(SITE_URL); ?>about.php">关于</a>
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<button class="theme-toggle" id="themeBtn">深色模式</button>
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<?php if (is_login()) { ?>
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<a class="glass-btn primary" href="<?php echo e(SITE_URL); ?>admin/index.php">管理</a>
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<a class="glass-btn primary" href="<?php echo e(SITE_URL); ?>logout.php">退出</a>
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<?php } else { ?>
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<a class="glass-btn primary" href="<?php echo e(SITE_URL); ?>login.php">登录</a>
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<?php } ?>
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</div>
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</nav>
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<div class="container">
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<div class="layout">
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<main>
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@@ -0,0 +1,26 @@
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<aside class="sidebar">
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<div class="side-panel glass">
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<h3>热门标签</h3>
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<div class="chip-row">
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<?php foreach ($navTags as $t) { ?>
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<a class="glass-chip" href="<?php echo e(SITE_URL); ?>tag.php?id=<?php echo (int)$t["id"]; ?>"><?php echo e($t["name"]); ?></a>
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<?php } ?>
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</div>
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</div>
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<div class="side-panel glass">
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<h3>分类</h3>
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<div class="chip-row">
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<?php foreach ($navCats as $c) { ?>
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<a class="glass-chip" href="<?php echo e(SITE_URL); ?>category.php?id=<?php echo (int)$c["id"]; ?>"><?php echo e($c["name"]); ?></a>
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<?php } ?>
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</div>
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</div>
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<div class="side-panel glass">
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<h3>归档</h3>
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<div id="archRow">
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<?php foreach ($navArch as $a) { ?>
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<div class="arch-item"><a href="<?php echo e(SITE_URL); ?>archive.php?ym=<?php echo e($a["ym"]); ?>"><?php echo e($a["ym"]); ?></a><span><?php echo (int)$a["cnt"]; ?> 篇</span></div>
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<?php } ?>
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</div>
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</div>
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</aside>
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