public function setProxy($proxy)
{
if (!empty($proxy['proxy_user_host'])) {
$this->config['proxy_host'] = $proxy['proxy_user_host'];
}
if (!empty($proxy['proxy_user_port'])) {
$this->config['proxy_port'] = $proxy['proxy_user_port'];
}
if (!empty($proxy['proxy_user_name'])) {
$this->config['proxy_username'] = $proxy['proxy_user_name'];
}
if (!empty($proxy['proxy_user_password'])) {
$this->config['proxy_password'] = $proxy['proxy_user_password'];
}
}