Are there any best practices or design patterns that PHP developers should follow when implementing real-time updates on webpages?

When implementing real-time updates on webpages using PHP, developers should consider using technologies like WebSockets or AJAX long polling to establish a connection between the client and server for real-time communication. It is important to handle the server-side logic efficiently to push updates to connected clients in real-time without causing performance issues. 

// PHP code snippet using WebSockets for real-time updates
// Server-side script to broadcast updates to connected clients

// Include the necessary library for WebSockets
require 'vendor/autoload.php';

use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;

class RealTimeUpdates 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) {
            $client->send($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 = IoServer::factory(
    new HttpServer(
        new WsServer(
            new RealTimeUpdates()
        )
    ),
    8080
);

$server->run();

Keywords

Websockets Server-Sent Events AJAX Long polling Comet

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