Sulu\Component\Webspace\Manager\WebspaceManager::getPortalInformationsByWebspaceKey PHP Method

    public function getPortalInformationsByWebspaceKey($environment, $webspaceKey)
    {
        return array_filter($this->getWebspaceCollection()->getPortalInformations($environment), function (PortalInformation $portal) use($webspaceKey) {
            return $portal->getWebspaceKey() === $webspaceKey;
        });
    }