How do PHP and swoole achieve efficient data migration and synchronization?

<?php

use SwooleCoroutine;

function migrate($sourceDb, $targetDb, $table) {
    // 从源数据库中查询数据
    $result = $sourceDb->query("SELECT * FROM {$table}");

    // 将查询结果插入目标数据库
    foreach ($result as $row) {
        $targetDb->query("INSERT INTO {$table} VALUES ({$row['id']}, '{$row['name']}')");
    }
}

Coun(function () {
    $sourceDb = new SwooleCoroutineMySQL();
    $targetDb = new SwooleCoroutineMySQL();

    // 连接到源数据库
    $sourceDb->connect([
        'host' => '127.0.0.1',
        'port' => 3306,
        'user' => 'root',
        'password' => 'password',
        'database' => 'source_db',
    ]);

    // 连接到目标数据库
    $targetDb->connect([
        'host' => '127.0.0.1',
        'port' => 3306,
        'user' => 'root',
        'password' => 'password',
        'database' => 'target_db',
    ]);

    // 创建协程任务，实现数据迁移
    Coroutine::create(function () use ($sourceDb, $targetDb) {
        migrate($sourceDb, $targetDb, 'table1');
    });

    Coroutine::create(function () use ($sourceDb, $targetDb) {
        migrate($sourceDb, $targetDb, 'table2');
    });

    // 等待所有协程任务结束
    Coroutine::waitForPending();
});

<?php

use SwooleCoroutine;

function sync($mysql, $redis, $table) {
    // 监听MySQL数据库的binlog事件
    $mysql->query("SET GLOBAL log_bin_trust_function_creators = 1");
    $mysql->query("SELECT @binlog := MAX(file) FROM mysql.general_log WHERE command_type = 'Connect';");
    $mysql->query("FLUSH LOGS;");
    $mysql->query("PURGE BINARY LOGS TO @binlog;");

    // 执行数据同步逻辑
    $redisKey = "table:{$table}";
    while (true) {
        $result = $mysql->query("SHOW BINLOG EVENTS");
        foreach ($result as $row) {
            $event = $row['Event'];

            // 解析binlog事件
            if (preg_match('/^(w+)|(.*?)|(.*?)|(.*?)|(.*?)$/', $event, $matches)) {
                $action = $matches[1];
                $time = $matches[2];
                $table = $matches[3];
                $primaryKey = $matches[4];
                $data = $matches[5];

                if ($table === $tableName) {
                    if ($action === 'UPDATE' || $action === 'WRITE') {
                        // 更新Redis缓存
                        $redis->hSet($redisKey, $primaryKey, $data);
                    } elseif ($action === 'DELETE' || $action === 'ERASE') {
                        // 删除Redis缓存
                        $redis->hDel($redisKey, $primaryKey);
                    }
                }
            }
        }

        // 每隔1秒查询一次binlog事件
        Coroutine::sleep(1);
    }
}

Coun(function () {
    $mysql = new SwooleCoroutineMySQL();
    $redis = new SwooleCoroutineRedis();

    // 连接到MySQL数据库
    $mysql->connect([
        'host' => '127.0.0.1',
        'port' => 3306,
        'user' => 'root',
        'password' => 'password',
        'database' => 'source_db',
    ]);

    // 连接到Redis
    $redis->connect('127.0.0.1', 6379);

    // 创建协程任务，实现数据同步
    Coroutine::create(function () use ($mysql, $redis) {
        sync($mysql, $redis, 'table1');
    });

    Coroutine::create(function () use ($mysql, $redis) {
        sync($mysql, $redis, 'table2');
    });

    // 等待所有协程任务结束
    Coroutine::waitForPending();
});