01-http.php

<?php

// Simple plaintext HTTP client example (for illustration purposes only).
// This shows how a plaintext TCP/IP connection is established to then send an
// application level protocol message (HTTP).
// Real applications should use react/http-client instead!
//
// This simple example only accepts an optional host parameter to send the
// request to.
//
// $ php examples/01-http.php
// $ php examples/01-http.php reactphp.org

use React\Stream\DuplexResourceStream;

require __DIR__ . '/../vendor/autoload.php';

$host = $argv[1] ?? 'www.google.com';

// connect to tcp://www.google.com:80 (blocking call!)
// for illustration purposes only, should use react/http-client or react/socket instead!
$resource = stream_socket_client('tcp://' . $host . ':80');
if (!$resource) {
    exit(1);
}

$stream = new DuplexResourceStream($resource);

$stream->on('data', function (string $chunk): void {
    echo $chunk;
});
$stream->on('close', function (): void {
    echo '[CLOSED]' . PHP_EOL;
});

$stream->write("GET / HTTP/1.0\r\nHost: $host\r\n\r\n");