76147bae94
一切皆为插件的开发者工具运行时框架
🧩 核心特性:
- 插件热插拔 (importlib 动态加载)
- 依赖自动解析 (拓扑排序 + 循环检测)
- 企业级稳定 (熔断/降级/重试/隔离)
- 事件驱动 (发布/订阅事件总线)
- 完整配置 (YAML 配置 + 热重载)
48 lines
1.4 KiB
PHP
48 lines
1.4 KiB
PHP
<?php
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class Database {
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private static $instance = null;
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private $pdo;
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private function __construct() {
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$config = require __DIR__ . '/../config.php';
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// 如果配置了 socket，使用 socket 连接
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if (isset($config['socket'])) {
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$dsn = "mysql:unix_socket={$config['socket']};dbname={$config['dbname']};charset={$config['charset']}";
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} else {
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$dsn = "mysql:host={$config['host']};port={$config['port']};dbname={$config['dbname']};charset={$config['charset']}";
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}
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$this->pdo = new PDO($dsn, $config['username'], $config['password'], [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_EMULATE_PREPARES => false,
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]);
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}
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public static function getInstance() {
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if (self::$instance === null) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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public function query($sql, $params = []) {
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$stmt = $this->pdo->prepare($sql);
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$stmt->execute($params);
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return $stmt;
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}
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public function fetchAll($sql, $params = []) {
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return $this->query($sql, $params)->fetchAll();
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}
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public function fetchOne($sql, $params = []) {
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return $this->query($sql, $params)->fetch();
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}
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public function lastInsertId() {
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return $this->pdo->lastInsertId();
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}
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}
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