PhpSocks

SOCKS5 proxy client, written in pure PHP with zero dependencies.

Features

• Supports SOCKS v5
• Supports CONNECT command
• Supports username/password authentication

Requirements

PHP version 7.4 or higher

Installation

composer require rovazh/phpsocks

Usage

Plain TCP connections

Connecting to example.net on port 80 through a SOCKS5 proxy server.

$client = new \PhpSocks\Client([
    'host' => '127.0.0.1', // SOCKS5 server ipv4 or ipv6 or hostname
    'port' => 1080, // SOCKS5 server port
]);

try {
    $stream = $client->connect('tcp://example.com:80');
    $stream->write("GET / HTTP/1.0\r\n\r\n");
    echo $stream->readAll();
    $stream->close();
} catch (\PhpSocks\Exception\PhpSocksException $e) {
    // Handle exception
}

Secure TLS connections

The following example demonstrates establishing a secure TLS connection to example.net on port 443 through a SOCKS5 proxy server.

$client = new \PhpSocks\Client(['host' => '127.0.0.1', 'port' => 1080]);

try {
    $stream = $client->connect('tls://example.net:443', [
        'tls' => [
            'peer_name' => 'example.net',
        ]
    ]);
    $stream->write("GET / HTTP/1.0\r\n\r\n");
    echo $stream->readAll();
    $stream->close();
} catch (\PhpSocks\Exception\PhpSocksException $e) {
    // Handle exception
}

The connect method accepts an associative array of SSL context options that can be used to configure TLS when connecting to a destination host.

Please note that SSL context options do not take any effect when using plain TCP connection tcp://.

Authentication

The library supports username/password authentication for SOCKS5 servers as defined in RFC 1929.

$client = new \PhpSocks\Client([
    'host' => '127.0.0.1',
    'port' => 1080,
    'auth' => [
        'username' => 'proxy_user',
        'password' => 'proxy_pass',
    ]
]);

Timeout

By default, the library relies on default_socket_timeout when connecting to a SOCKS5 server. To set it at runtime, you can use the connect_timeout option when creating an instance of the Client.

$client = new \PhpSocks\Client([
    'host' => '127.0.0.1',
    'port' => 1080,
    'connect_timeout' => 5.0, // 5 seconds
]);

There is also a timeout for sending/receiving data to/from a SOCKS5 server and a destination host. By default, this timeout is set by the underlying operating system. To explicitly set it when creating an instance of the Client, use the timeout option.

$client = new \PhpSocks\Client([
    'host' => '127.0.0.1',
    'port' => 1080,
    'connect_timeout' => 5.0, // 5 seconds
    'timeout' => 3, // 3 seconds
]);

License

The code for PhpSocks is distributed under the terms of the MIT license (see LICENSE).