SoapClient result "failed to open stream: HTTP request

我试图在我的服务器和另一个服务器之间打开一个套接字，但它返回以下交战消息:

SoapClient:: SoapClient () [SoapClient。soapclient]: failed to open stream: HTTP request failed

我的SoapClient应该使用特定的IP连接，所以我使用以下代码:

$aOpts = array('socket' =>阵列("bindto"=比;"我的IP");$rStreamContext = stream_context_create($aOpts);

$client = new SoapClient($this->_wsdl_test_url, array('stream_context'=>$rStreamContext));

服务器一直给我相同的警告，未能打开流:HTTP