EvilFreelancer/openvpn-php

<?php
require_once __DIR__ . '/../vendor/autoload.php';

// Config object
$config = new \OpenVPN\Config();

// Set client options
$config->client();
$config->dev             = 'tun';
$config->proto           = 'tcp';
$config->resolvRetry     = 'infinite';
$config->cipher          = 'AES-256-CB';
$config->redirectGateway = true;
$config->keyDirection    = 1;
$config->remoteCertTls   = 'server';
$config->authUserPass    = true;
$config->authNocache     = true;
$config->nobind          = true;
$config->persistKey      = true;
$config->persistTun      = true;
$config->compLzo         = true;
$config->verb            = 3;
$config->httpProxy       = 'proxy-http.example.com 3128';

$config->setRemotes([
    'vpn1.example.com 1194',
    'vpn2.example.com 11194'
]);

//// Set additional certificates of client
//$config->setCerts([
//    'ca'   => '/etc/openvpn/keys/ca.crt',
//    'cert' => '/etc/openvpn/keys/issued/client1.crt',
//    'key'  => '/etc/openvpn/keys/private/client1.key',
//], true);

// Generate config by options
echo $config->generate() . PHP_EOL;