PHP connector is a separate package that located at RichFilemanager-PHP repository.

The following command installs new application instance to "filemanager" folder.

composer create-project --prefer-dist servocoder/richfilemanager filemanager

You may have RichFilemanager application deployed and wish to install / update PHP connector for it. In this case run the update composer command under the folder where RichFilemanager is located:

composer update

Follow the RichFilemanager-PHP repository to find a comprehensive information.

It's possible to integrate RichFilemanager with any known PHP framework.

Some integrations are outlined at the Wiki. Follow the link for details.