v1.0.10

2026-08-03 00:07:01 +08:00
commit 71c6e8d9c1
112 changed files with 7815 additions and 0 deletions
@@ -0,0 +1,43 @@
+<?php
+/**
+ * PDO 数据库连接类（单例模式）
+ * 用法：$pdo = DB::getInstance()->getPdo();
+ */
+class DB
+{
+    private static $instance = null;
+    private $pdo;
+
+    private function __construct()
+    {
+        $cfg = require __DIR__ . '/../../config/database.php';
+        $dsn = sprintf(
+            'mysql:host=%s;port=%d;dbname=%s;charset=%s',
+            $cfg['host'],
+            $cfg['port'],
+            $cfg['dbname'],
+            $cfg['charset']
+        );
+        $this->pdo = new PDO($dsn, $cfg['username'], $cfg['password'], [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES   => false,
+        ]);
+    }
+
+    public static function getInstance()
+    {
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+
+    public function getPdo()
+    {
+        return $this->pdo;
+    }
+
+    // 禁止克隆
+    private function __clone() {}
+}