Alfresco - интеграция с PHP

Я пытаюсь интегрировать Alfresco PHP API. и все же у меня эта ошибка.

Warning: Declaration of AlfrescoWebService::__soapCall($function_name, $arguments = Array, $options = Array, $input_headers = Array, $output_headers = Array) should be compatible with SoapClient::__soapCall($function_name, $arguments, $options = NULL, $input_headers = NULL, &$output_headers = NULL) in C:\xampp\htdocs\Alfresco\Service\WebService\AlfrescoWebService.php on line 97

Warning: Declaration of AlfrescoWebService::__doRequest($request, $location, $action, $version) should be compatible with SoapClient::__doRequest($request, $location, $action, $version, $one_way = NULL) in C:\xampp\htdocs\Alfresco\Service\WebService\AlfrescoWebService.php on line 97

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://localhost:8080/alfresco/api/AuthenticationService?wsdl' : failed to load external entity "http://localhost:8080/alfresco/api/AuthenticationService?wsdl" in C:\xampp\htdocs\Alfresco\Service\WebService\AlfrescoWebService.php:31 Stack trace: #0 C:\xampp\htdocs\Alfresco\Service\WebService\AlfrescoWebService.php(31): SoapClient->SoapClient('http://localhos...', Array) #1 C:\xampp\htdocs\Alfresco\Service\WebService\WebServiceFactory.php(26): AlfrescoWebService->__construct('http://localhos...', Array) #2 C:\xampp\htdocs\Alfresco\Service\Repository.php(56): WebServiceFactory::getAuthenticationService('http://localhos...') #3 C:\xampp\htdocs\index.php(16): Repository->authenticate('admin', 'abc123') #4 {main} thrown in C:\xampp\htdocs\Alfresco\Service\WebService\AlfrescoWebService.php on line 31

может ли кто-нибудь помочь мне интегрировать PHP API?