sabre/dav is the most popular WebDAV framework for PHP. Use it to create WebDAV, CalDAV and CardDAV servers.
Full documentation can be found on the website:
https://sabre.io/
SabreDAV is being developed by fruux. Drop us a line for commercial services or enterprise support.
