在PHP中实现websocket服务器可以使用以下步骤: 安装php WEBSocket库,比如Ratchet:composer
创建一个PHP文件,用来作为WebSocket服务器的入口文件,比如server.php
,然后在文件中编写WebSocket服务器的代码,如下所示:
<?php
require __DIR__ . '/vendor/autoload.php';
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
class WebSocketServer implements MessageComponentInterface {
protected $clients;
public function __construct() {
$this->clients = new \SplObjectStorage;
}
public function onOpen(ConnectionInterface $conn) {
$this->clients->attach($conn);
echo "New connection! ({$conn->resourceId})\n";
}
public function onMessage(ConnectionInterface $from, $msg) {
foreach ($this->clients as $client) {
if ($client !== $from) {
$client->send($msg);
}
}
}
public function onClose(ConnectionInterface $conn) {
$this->clients->detach($conn);
echo "Connection {$conn->resourceId} has disconnected\n";
}
public function onError(ConnectionInterface $conn, \Exception $e) {
echo "An error has occurred: {$e->getMessage()}\n";
$conn->close();
}
}
$server = new \Ratchet\Server\iOServer(
new \Ratchet\Http\httpserver(
new \Ratchet\WebSocket\WsServer(
new WebSocketServer()
)
),
new \React\Socket\Server('0.0.0.0:8080', loop)
);
echo "WebSocket server started\n";
$server->run();
启动WebSocket服务器,可以使用命令行运行php server.php
来启动服务器
现在WebSocket服务器已经可以接受和处理WebSocket连接了,可以通过WebSocket客户端连接到服务器并进行通信。
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本文标题: PHP中如何实现WebSocket服务器
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