PHP异步协程开发：构建高可用的聊天室系统

<?php
$server = new SwooleServer('0.0.0.0', 9501);

$server->on('connect', function ($server, $fd) {
    echo "Client $fd connected
";
});

$server->on('receive', function ($server, $fd, $fromId, $data) {
    // 处理收到的消息
    echo "Received message: $data
";
    // 广播消息给其他客户端
    $server->sendtoAll($data);
});

$server->on('close', function ($server, $fd) {
    echo "Client $fd closed
";
});

$server->start();

<?php
$server = new SwooleServer('0.0.0.0', 9501);

$server->on('connect', function ($server, $fd) {
    echo "Client $fd connected
";
});

$server->on('receive', function ($server, $fd, $fromId, $data) {
    // 使用协程处理消息
    go(function () use ($server, $fd, $data) {
        // 异步发送消息给其他客户端
        $server->sendtoAll($data);
        // 异步处理其他业务逻辑，例如存储消息等
        // ...
    });
});

$server->on('close', function ($server, $fd) {
    echo "Client $fd closed
";
});

$server->start();

<?php
$server = new SwooleServer('0.0.0.0', 9501);

$connections = [];

$server->on('connect', function ($server, $fd) use (&$connections) {
    echo "Client $fd connected
";
    $connections[$fd] = $fd;
});

$server->on('receive', function ($server, $fd, $fromId, $data) use (&$connections) {
    go(function () use ($server, $fd, $data, &$connections) {
        foreach ($connections as $clientFd) {
            if ($clientFd !== $fd) {
                $server->send($clientFd, $data);
            }
        }
    });
});

$server->on('close', function ($server, $fd) use (&$connections) {
    echo "Client $fd closed
";
    unset($connections[$fd]);
});

$server->start();