我正在使用Solr 5.4，其用户界面运行正常。
我已安装Solarium来帮助开发我的用户界面。虽然，我在尝试使用示例代码时收到此错误：
Fatal error: Uncaught Solarium\Exception\HttpException: Solr HTTP
error: HTTP request failed, Connection timed out after 5001 milliseconds in solarium/library/Solarium/Core/Client/Adapter/Curl.php:195 Stack trace: #0
solarium/library/Solarium/Core/Client/Adapter/Curl.php(92): Solarium\Core\Client\Adapter\Curl->check('', Array, Resource id #37) #1
solarium/library/Solarium/Core/Client/Adapter/Curl.php(213): Solarium\Core\Client\Adapter\Curl->getResponse(Resource id #37, false) #2
solarium/library/Solarium/Core/Client/Adapter/Curl.php(68): Solarium\Core\Client\Adapter\Curl->getData(Object(Solarium\Core\Client\Request), Object(Solarium\Core\Client\Endpoint)) #3
solarium/library/Solarium/Core/Client/Client.php(804): Solarium\Core\Client\Adapter\Curl->execute(Object(Solarium\Core\Client\Request), Object(Solariu in solarium/library/Solarium/Core/Client/Adapter/Curl.php on line 195
我在运行php7的CentOS服务器下安装了php70w-common，它附带了php-curl，如webtatic.com所示。 Curl和Libcurl也已安装。
有没有人遇到同样的问题？
谢谢！