Zend Search Lucene is a PHP library for creating and searching full text indexes using the Lucene index format.
Part of the Zend Framework, Zend Search Lucene allows the creation and searching of full text indexes in PHP. This goes above and beyond the full text search offered by MySQL.
Although Zend Search Lucene is part of the Zend Framework, it can also be used as a standalone library in other projects or with alternative frameworks such as Symfony.