init

vendor/clue/socks-react/examples/03-proxy-chaining.php

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+<?php
+
+use Clue\React\Socks\Client;
+use React\Socket\Connector;
+use React\Socket\ConnectionInterface;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+if (!isset($argv[1])) {
+    echo 'No arguments given! Run with <proxy1> [<proxyN>...]' . PHP_EOL;
+    echo 'You can add 1..n proxies in the path' . PHP_EOL;
+    exit(1);
+}
+
+$path = array_slice($argv, 1);
+
+// Alternatively, you can also hard-code this value like this:
+//$path = array('127.0.0.1:9051', '127.0.0.1:9052', '127.0.0.1:9053');
+
+$loop = React\EventLoop\Factory::create();
+
+// set next SOCKS server chain via p1 -> p2 -> p3 -> destination
+$connector = new Connector($loop);
+foreach ($path as $proxy) {
+    $connector = new Client($proxy, $connector);
+}
+
+// please note how the client uses p3 (not p1!), which in turn then uses the complete chain
+// this creates a TCP/IP connection to p1, which then connects to p2, then to p3, which then connects to the target
+$connector = new Connector($loop, array(
+    'tcp' => $connector,
+    'timeout' => 3.0,
+    'dns' => false
+));
+
+echo 'Demo SOCKS client connecting to SOCKS proxy server chain ' . implode(' -> ', $path) . PHP_EOL;
+
+$connector->connect('tls://www.google.com:443')->then(function (ConnectionInterface $stream) {
+    echo 'connected' . PHP_EOL;
+    $stream->write("GET / HTTP/1.0\r\n\r\n");
+    $stream->on('data', function ($data) {
+        echo $data;
+    });
+}, 'printf');
+
+$loop->run();