src/PlatformService/PlatformService.php
public function Reconnect()
    {
        $this->requestXmlDocument = '';
        $uriFragment = implode(CoreConstants::SLASH_CHAR, array('v1', 'Connection', 'Reconnect'));
        $requestParameters = new RequestParameters(null, 'GET', null, $uriFragment);
        list($respCode, $respXml) = $this->restRequestHandler->sendRequest($requestParameters, $this->requestXmlDocument, null);
        return simplexml_load_string($respXml);
    }
public function Reconnect()
    {
        $this->requestXmlDocument = '';
        $uriFragment = implode(CoreConstants::SLASH_CHAR, array('v1', 'Connection', 'Reconnect'));
        $requestParameters = new RequestParameters(null, 'GET', null, $uriFragment);
        list($respCode, $respXml) = $this->restRequestHandler->sendRequest($requestParameters, $this->requestXmlDocument, null);
        return simplexml_load_string($respXml);
    }
Reconnect generates a new OAuth access token and invalidates the OAuth access token used
in the request, thereby extending the life span by six months.

@return \SimpleXMLElement Xml of Reconnect response