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）。
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
代码语言：javascript复制composer require amphp/mysql
使用
入门使用
代码语言：javascript复制<?php
/**
* @desc mysql.php
* @author Tinywan(ShaoBo Wan)
* @date 2024/8/16 11:19
*/
declare(strict_types=1);
require 'vendor/autoload.php';
use AmpMysqlMysqlConfig;
use AmpMysqlMysqlConnectionPool;
$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
代码语言：javascript复制[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
代码语言：javascript复制<?php
require 'support/bootstrap.php';
use AmpFuture;
use AmpMysqlMysqlConfig;
use AmpMysqlMysqlConnectionPool;
use function Ampasync;
$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 */
$results = Futureawait($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
代码语言：javascript复制<?php
require 'support/bootstrap.php';
require 'support/generic-table.php';
use AmpMysqlMysqlConfig;
use AmpMysqlMysqlConnectionPool;
$db = new MysqlConnectionPool(MysqlConfig::fromAuthority(DB_HOST, DB_USER, DB_PASS, DB_NAME));
/* create same table than in 3-generic-with-yield.php */
createGenericTable($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();
