init: 我的博客项目

2026-09-09 19:30:18 +08:00
commit 76c241f032
34 changed files with 3420 additions and 0 deletions
@@ -0,0 +1,62 @@
+<?php
+require_once __DIR__ . "/db.php";
+
+function e($str) {
+    return htmlspecialchars((string)$str, ENT_QUOTES, "UTF-8");
+}
+
+function slugify($text) {
+    $text = strtolower(trim($text));
+    $text = preg_replace("/[^a-z0-9]+/", "-", $text);
+    $text = trim($text, "-");
+    return $text !== "" ? $text : "post-" . uniqid();
+}
+
+function get_categories() {
+    return db()->query("SELECT * FROM categories ORDER BY id")->fetchAll();
+}
+
+function get_all_tags() {
+    return db()->query("SELECT t.*, COUNT(at.article_id) cnt FROM tags t LEFT JOIN article_tags at ON t.id=at.tag_id GROUP BY t.id ORDER BY cnt DESC")->fetchAll();
+}
+
+function get_article_tags($articleId) {
+    $st = db()->prepare("SELECT t.* FROM tags t JOIN article_tags at ON t.id=at.tag_id WHERE at.article_id=?");
+    $st->execute([$articleId]);
+    return $st->fetchAll();
+}
+
+function get_archives() {
+    $sql = "SELECT DATE_FORMAT(created_at, ?) ym, COUNT(*) cnt FROM articles WHERE status=? GROUP BY ym ORDER BY ym DESC";
+    $st = db()->prepare($sql);
+    $st->execute(["%Y年%m月", "published"]);
+    return $st->fetchAll();
+}
+
+function record_visit($page) {
+    $ip = $_SERVER["REMOTE_ADDR"] ?? "";
+    $ua = substr($_SERVER["HTTP_USER_AGENT"] ?? "", 0, 250);
+    $st = db()->prepare("INSERT IGNORE INTO visitor_stats (visit_date, ip, page, ua) VALUES (CURDATE(), ?, ?, ?)");
+    $st->execute([$ip, $page, $ua]);
+}
+
+function paginate($total, $page, $perPage) {
+    $pages = max(1, (int)ceil($total / $perPage));
+    $page = max(1, min($pages, (int)$page));
+    return [
+        "page" => $page,
+        "pages" => $pages,
+        "offset" => ($page - 1) * $perPage,
+        "perPage" => $perPage,
+    ];
+}
+
+function markdown($text) {
+    static $parsedown = null;
+    if ($parsedown === null) {
+        require_once __DIR__ . "/Parsedown.php";
+        $parsedown = new Parsedown();
+        $parsedown->setBreaksEnabled(true);
+    }
+    return $parsedown->text((string)$text);
+}