function getProxy()
{
    if (!empty($_GET['radomProxy'])) {
        require __DIR__ . '/library/getProxy.php';
        $hoge = new Proxy();
        $hoge->setRandomProxyAndPort();
        $proxy = $hoge->getProxy() . ":" . $hoge->getPort();
        return $proxy;
    } else {
        return false;
    }
}