按照楼主的视频（Laravel实现第三方登录）做了个demo，发现测试（集成Github）报错了、
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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)
in CurlFactory.php line 187
at CurlFactory::createRejection(object(EasyHandle), array('errno' => '60', 'error' => 'SSL certificate problem: unable to get local issuer certificate', 'url' => 'https://github.com/login/oauth/access_token', 'content_type' => null, 'http_code' => '0', 'header_size' => '0', 'request_size' => '0', 'filetime' => '-1', 'ssl_verify_result' => '0', 'redirect_count' => '0', 'total_time' => '4.891', 'namelookup_time' => '0.062', 'connect_time' => '4.516', 'pretransfer_time' => '0', 'size_upload' => '0', 'size_download' => '0', 'speed_download' => '0', 'speed_upload' => '0', 'download_content_length' => '-1', 'upload_content_length' => '-1', 'starttransfer_time' => '0', 'redirect_time' => '0', 'redirect_url' => '', 'primary_ip' => '192.30.253.113', 'certinfo' => array(), 'primary_port' => '443', 'local_ip' => '192.168.10.11', 'local_port' => '19349')) in CurlFactory.php line 150
at CurlFactory::finishError(object(CurlHandler), object(EasyHandle), object(CurlFactory)) in CurlFactory.php line 103
at CurlFactory::finish(object(CurlHandler), object(EasyHandle), object(CurlFactory)) in CurlHandler.php line 43
at CurlHandler->__invoke(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in Proxy.php line 28
at Proxy::GuzzleHttp\Handler\{closure}(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in Proxy.php line 51
at Proxy::GuzzleHttp\Handler\{closure}(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in PrepareBodyMiddleware.php line 72
at PrepareBodyMiddleware->__invoke(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in Middleware.php line 30
at Middleware::GuzzleHttp\{closure}(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in RedirectMiddleware.php line 68
at RedirectMiddleware->__invoke(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in Middleware.php line 59
at Middleware::GuzzleHttp\{closure}(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in HandlerStack.php line 67
at HandlerStack->__invoke(object(Request), array('synchronous' => true, 'handler' => object(HandlerStack), 'allow_redirects' => array('max' => '5', 'protocols' => array('http', 'https'), 'strict' => false, 'referer' => false, 'track_redirects' => false), 'http_errors' => true, 'decode_content' => true, 'verify' => true, 'cookies' => false)) in Client.php line 275
