tcp_client.php

<?php
    require_once "vendor/autoload.php";

    use Hprose\Swoole\Client;

    $client = new Client('tcp://127.0.0.1:2016');
    $client->hello('World')->then(function($result) {
        echo $result;
    }, function($e) {
        echo $e;
    });
    $client->hello('World 0', function() {
        echo "ok\r\n";
    });
    $client->hello('World 1', function($result) {
        echo $result . "\r\n";
    });
    $client->hello('World 2', function($result, $args) {
        echo $result . "\n";
    });
    $client->hello('World 3', function($result, $args, $error) {
        echo $result . "\n";
    });