Where are the index files of Zend Lucene?

the first time I indexed my data this way

$index = new Zend_Search_Lucene('/tmp/search_index', true);

This created a tmp/search_index folder in the public folder of my project. After I noticed there is something wrong with the index I just deleted all file in the search_index folder.

After trying to reindex the data I realized that the search_index folder is empty. However the search gives still results. Where is the index data sto开发者_如何学编程red now? It's not in the public folder...

---

/tmp/search_index refers to the system root /tmp folder. Use some other path relative to your app, like tmp/search_index.