使用Goutte通过HTTPS登录网站

Question

我正在尝试使用goutte和wamp在Windows 10上登录网站，但我收到以下错误。

RequestException in CurlFactory.php line 187:
cURL error 60: SSL certificate problem: unable to get local issuer certificate (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)

即使使用提供的示例代码，我也会收到错误。

$crawler = $client->request('GET', 'http://github.com/');
$crawler = $client->click($crawler->selectLink('Sign in')->link());
$form = $crawler->selectButton('Sign in')->form();
$crawler = $client->submit($form, array('login' => 'fabpot', 'password' => 'xxxxxx'));
$crawler->filter('.flash-error')->each(function ($node) {
    print $node->text()."\n";
});