__construct Method

void AsyncUdpConnection::__construct(string $remote_address)

Creates a UDP connection object.

AsyncUdpConnection allows Workerman to act as a client to transmit UDP data to a remote server.

Parameters

Parameter: remote_address

The address to connect to, for example:
udp://192.168.1.1:1234
frame://192.168.1.1:8080
text://192.168.1.1:8080

Example

use Workerman\Worker;
use Workerman\Connection\AsyncUdpConnection;
use Workerman\Timer;
require_once __DIR__ . '/vendor/autoload.php';

$worker = new Worker('udp://0.0.0.0:1234');
$worker->onWorkerStart = function(){
    // Start a UDP client after 1 second, connect to port 1234 and send the string hi
    Timer::add(1, function(){
        $udp_connection = new AsyncUdpConnection('udp://127.0.0.1:1234');
        $udp_connection->onConnect = function($udp_connection){
            $udp_connection->send('hi');
        };
        $udp_connection->onMessage = function($udp_connection, $data){
            // Received data hello returned from the server
            echo "recv $data\r\n";
            // Close the connection
            $udp_connection->close();
        };
        $udp_connection->connect();
    }, null, false);
};
$worker->onMessage = function($connection, $data)
{
    // Received data from AsyncUdpConnection client, return the string hello
    $connection->send("hello");
};
Worker::runAll();             

After execution, it will print something like:

recv hello