dkd / php-cmis-client

     * @return string|null Returns the new object id or <code>null</code> if the repository sent an empty

     *      result (which should not happen)

     */

    public function createFolder(

        $repositoryId,

        PropertiesInterface $properties,

        $folderId,

        array $policies = [],

        AclInterface $addAces = null,

        AclInterface $removeAces = null,

        ExtensionDataInterface $extension = null

    ) {

        $url = $this->getObjectUrl($repositoryId, $folderId);

        $queryArray = $this->createQueryArray(

            Constants::CMISACTION_CREATE_FOLDER,

            $properties,

            $policies,

            $addAces,

            $removeAces,

            $extension

        );

        $newObject = $this->getJsonConverter()->convertObject((array) $this->postJson($url, $queryArray));

        return ($newObject === null) ? null : $newObject->getId();

    }

    /**

     * Creates an item object of the specified type (given by the cmis:objectTypeId property).

     * @return string|null Returns the new item id of the relationship object or <code>null</code> if the repository

     *      sent an empty result (which should not happen)

     */

    public function createRelationship(

        $repositoryId,

        PropertiesInterface $properties,

        array $policies = [],

        AclInterface $addAces = null,

        AclInterface $removeAces = null,

        ExtensionDataInterface $extension = null

    ) {

        $url = $this->getRepositoryUrl($repositoryId);

        $queryArray = $this->createQueryArray(

            Constants::CMISACTION_CREATE_RELATIONSHIP,

            $properties,

            $policies,

            $addAces,

            $removeAces,

            $extension

        );

        $newObject = $this->getJsonConverter()->convertObject((array) $this->postJson($url, $queryArray));

        return ($newObject === null) ? null : $newObject->getId();

    }

    /**

     * Deletes the content stream for the specified document object.