PHP异步非阻塞MySQL客户端连接池

概述

AMPHP是一个事件驱动的PHP库集合，设计时考虑了纤程和并发性。amphp/mysql是一个异步MySQL客户端。该库通过在可用连接的可伸缩池中透明地分发查询来实现并发查询。客户端透明地将这些查询分布在一个可扩展的可用连接池中，并使用100%的用户态PHP，没有外部扩展依赖性（例如ext/mysqli，ext/pdo等）。Uh428资讯网——每日最新资讯28at.com

特征

• 公开一个非阻塞API，用于并发发出多个MySQL查询
• 透明的连接池克服了MySQL的基本同步连接协议
• MySQL传输编码支持（gzip，TLS加密）
• 支持参数化预处理语句
• 带有提交和回滚事件钩子的嵌套事务
• 无缓冲结果以减少大型结果集的内存使用
• 完整的MySQL协议支持，包括所有可用的异步命令

安装

此包可以作为Composer依赖项安装Uh428资讯网——每日最新资讯28at.com

composer require amphp/mysql

使用

入门使用

<?php/** * @desc mysql.php * @author Tinywan(ShaoBo Wan) * @date 2024/8/16 11:19 */declare(strict_types=1);require 'vendor/autoload.php';use Amp/Mysql/MysqlConfig;use Amp/Mysql/MysqlConnectionPool;$config = MysqlConfig::fromString(    "host=127.0.0.1 user=root password=123456 db=test");$pool = new MysqlConnectionPool($config);$statement = $pool->prepare("SELECT * FROM mall_member WHERE member_time = :member_time Limit 10");$timeOne = microtime(true);$result = $statement->execute(['member_time' => 0]);foreach ($result as $key => $row) {    echo '[x] ['.$key.'] '.$row['member_name'].PHP_EOL;}$timeTwo = microtime(true);echo '[x] Run Time Result : ' . ($timeTwo - $timeOne) . PHP_EOL;

执行结果：Uh428资讯网——每日最新资讯28at.com

[x] [0] 12161435[x] [1] 开源技术小栈[x] [2] 12161435[x] [3] 12161435[x] [4] T1800082[x] [5] 12161435[x] [6] 12161435[x] [7] 12161387[x] [8] 12161235[x] [9] 12161149[x] Run Time Result : 0.045973062515259

迭代器

<?phprequire 'support/bootstrap.php';use Amp/Future;use Amp/Mysql/MysqlConfig;use Amp/Mysql/MysqlConnectionPool;use function Amp/async;$db = new MysqlConnectionPool(MysqlConfig::fromAuthority(DB_HOST, DB_USER, DB_PASS, DB_NAME));$db->query("DROP TABLE IF EXISTS tmp");/* Create table and insert a few rows *//* we need to wait until table is finished, so that we can insert. */$db->query("CREATE TABLE IF NOT EXISTS tmp (a INT(10), b INT(10))");print "Table successfully created." . PHP_EOL;$statement = $db->prepare("INSERT INTO tmp (a, b) VALUES (?, ? * 2)");$future = [];foreach (/range(1, 5) as $num) {    $future[] = async(fn () => $statement->execute([$num, $num]));}/* wait until everything is inserted */$results = Future/await($future);print "Insertion successful (if it wasn't, an exception would have been thrown by now)" . PHP_EOL;$result = $db->query("SELECT a, b FROM tmp");foreach ($result as $row) {    var_dump($row);}$db->query("DROP TABLE tmp");$db->close();

事务支持

<?phprequire 'support/bootstrap.php';require 'support/generic-table.php';use Amp/Mysql/MysqlConfig;use Amp/Mysql/MysqlConnectionPool;$db = new MysqlConnectionPool(MysqlConfig::fromAuthority(DB_HOST, DB_USER, DB_PASS, DB_NAME));/* create same table than in 3-generic-with-yield.php */createGenericTable($db);$transaction = $db->beginTransaction();$transaction->execute("INSERT INTO tmp VALUES (?, ? * 2)", [6, 6]);$result = $transaction->execute("SELECT * FROM tmp WHERE a >= ?", [5]); // Two rows should be returned.foreach ($result as $row) {    /var_dump($row);}$transaction->rollback();// Run same query again, should only return a single row since the other was rolled back.$result = $db->execute("SELECT * FROM tmp WHERE a >= ?", [5]);foreach ($result as $row) {    /var_dump($row);}$db->close();

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