README

基于 reactphp-x/mysql-pool 和 wpjscc/database 的异步 Cycle Database 驱动。在 ReactPHP Fiber 环境下，内部通过 React\Async\await() 挂起协程，对外保持 Cycle 风格的同步 API（$db->query() / $db->execute() / 查询构建器等）。

架构

Cycle DatabaseInterface (同步 API)
    → AsyncDatabase / AsyncDatabaseManager
        → AsyncMysqlDriver (DriverInterface)
            → React\Async\await($pool->query(...))
                → reactphp-x/mysql-pool → react/mysql

特性

异步驱动：内部使用连接池与 React\Async\await()，对外暴露同步风格接口
兼容 Cycle Database API：支持 select/insert/update/delete/upsert 构建器与 DatabaseInterface
事务：支持 $db->transaction() 及 begin/commit/rollback
流式查询：驱动层提供 queryStream()，适合大结果集
连接池：可配置最小/最大连接数、等待队列与超时
SQLite：提供 AsyncSQLiteDriver（基于 clue/reactphp-sqlite）

安装

composer require reactphp-x/cycle-async-database

要求：PHP 8.1+，MySQL 5.7+/8.0+（Upsert 使用 MySQL 8.0.19+ 行别名语法）。

快速开始

<?php
require __DIR__ . '/vendor/autoload.php';

use Cycle\Database\Config as Config;
use ReactphpX\CycleAsyncDatabase\AsyncDatabaseManager;
use ReactphpX\CycleAsyncDatabase\AsyncMySQLDriverConfig;
use ReactphpX\CycleAsyncDatabase\AsyncTcpConnectionConfig;

$dbal = new AsyncDatabaseManager(new Config\DatabaseConfig([
    'default' => 'default',
    'databases' => [
        'default' => [
            'driver' => 'mysql',
            'prefix' => '',
        ],
    ],
    'connections' => [
        'mysql' => new AsyncMySQLDriverConfig(
            connection: new AsyncTcpConnectionConfig(
                database: getenv('DB_NAME') ?: 'test',
                host: getenv('DB_HOST') ?: '127.0.0.1',
                port: (int) (getenv('DB_PORT') ?: 3306),
                charset: getenv('DB_CHARSET') ?: 'utf8mb4',
                user: getenv('DB_USER') ?: 'root',
                password: getenv('DB_PASSWORD') ?: '123456',
            ),
            options: [
                'minConnections' => (int) (getenv('DB_POOL_MIN') ?: 1),
                'maxConnections' => (int) (getenv('DB_POOL_MAX') ?: 10),
                'waitQueue' => (int) (getenv('DB_POOL_QUEUE') ?: 100),
                'waitTimeout' => (int) (getenv('DB_POOL_TIMEOUT') ?: 0),
            ],
        ),
    ],
]));

$db = $dbal->database('default');

// 简单查询
$stmt = $db->query('SELECT 1 AS one');
var_dump($stmt->fetchAll());

// DDL / DML
$db->execute('CREATE TABLE IF NOT EXISTS demo_basic (id INT AUTO_INCREMENT PRIMARY KEY, title VARCHAR(255))');
$affected = $db->execute('INSERT INTO demo_basic (title) VALUES (?)', ['hello']);
echo "Inserted rows: {$affected}\n";
echo 'Last ID: ' . $db->getDriver()->lastInsertID() . "\n";

运行示例

composer install

export DB_HOST=127.0.0.1
export DB_PORT=3306
export DB_NAME=test
export DB_USER=root
export DB_PASSWORD=123456
export DB_CHARSET=utf8mb4

php examples/mysql_basic.php
php examples/mysql_queries.php
php examples/mysql_transactions.php
php examples/mysql_upsert.php
php examples/sqlite_basic.php

变量	默认值	说明
`DB_HOST`	`127.0.0.1`	MySQL 地址
`DB_PORT`	`3306`	MySQL 端口
`DB_NAME`	`test`	数据库名
`DB_USER`	`root`	用户名
`DB_PASSWORD`	`123456`	密码
`DB_CHARSET`	`utf8mb4`	字符集
`DB_POOL_MIN`	`1`	连接池最小连接数
`DB_POOL_MAX`	`10`	连接池最大连接数
`DB_POOL_QUEUE`	`100`	等待队列容量
`DB_POOL_TIMEOUT`	`0`	获取连接超时（毫秒，0 表示不超时）

使用方式

查询构建器

$rows = $db->select('*')
    ->from('users')
    ->where(['status' => 'active'])
    ->orderBy('id', 'DESC')
    ->limit(10)
    ->fetchAll();

$db->insert('users')->values(['email' => 'a@b.com', 'name' => 'Adam'])->run();
$db->update('users', ['name' => 'Updated'], ['id' => 1])->run();
$db->delete('users', ['id' => 100])->run();

事务

$result = $db->transaction(function ($txDb) {
    $txDb->execute('INSERT INTO logs (val) VALUES (?)', [100]);
    $txDb->execute('INSERT INTO logs (val) VALUES (?)', [200]);
    return 'ok';
});

UPSERT

wpjscc/database 2.x 要求指定冲突列：

$db->upsert('users')
    ->columns('email', 'name')
    ->conflicts('email')
    ->values(['email' => 'a@b.com', 'name' => 'Adam'])
    ->run();

$db->upsert('users')
    ->columns('email', 'name', 'age')
    ->conflicts('email')
    ->updates('age', 'name')
    ->values([
        ['email' => 'a@b.com', 'name' => 'Charlie', 'age' => 10],
    ])
    ->run();

流式查询

use ReactphpX\CycleAsyncDatabase\AsyncMysqlDriver;

/** @var AsyncMysqlDriver $driver */
$driver = $db->getDriver();
$stream = $driver->queryStream('SELECT * FROM big_table');

核心类

类	说明
`AsyncDatabaseManager`	数据库工厂与管理器
`AsyncDatabase`	实现 `DatabaseInterface` 的高层封装
`AsyncMysqlDriver`	基于 mysql-pool 的异步 MySQL 驱动
`AsyncTransactionDriver`	事务内持有单连接的驱动
`AsyncStatement`	将 `MysqlResult` 适配为 `StatementInterface`
`AsyncMySQLDriverConfig` / `AsyncTcpConnectionConfig`	MySQL 连接配置
`AsyncSQLiteDriver` / `AsyncSQLiteDriverConfig`	SQLite 异步驱动

测试

composer install
./vendor/bin/phpunit

License

MIT

reactphp-x / cycle-async-database

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