<?php
// db_connect.php - 数据库连接文件
date_default_timezone_set('Asia/Shanghai');
require_once 'config.php';

try {
    $pdo = new PDO("mysql:host=$host;dbname=$database;charset=utf8", $username, $password);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
} catch(PDOException $e) {
    die("数据库连接失败: " . $e->getMessage());
}
?>