This is a stand-alone and easy to install data provider for the Open Archives Initiative's Protocol for Metadata Harvesting (OAI-PMH).
It serves records in any metadata format from directories of XML files using the directory name as metadata prefix, the filename as identifier and the filemtime as datestamp. 0-byte files are considered deleted records and handled accordingly. Resumption tokens are managed using files. Sets are currently not supported.
Changelog:
- added support for PHP 8.1 and PHP 8.2 (with hints from @ghohmann)