Show HN: PHP-fts – Full-text search engine in pure PHP, no extensions

PHP-fts is a pure PHP 8.1+ full-text search engine requiring zero extensions or external services, using trigram indexing with O(1) lookup via a fixed ~810 KB binary index and BM25/IDF scoring identical to Lucene. It supports field boosting, AND/OR filters, soft deletes, and bulk inserts at 2.4x single-insert speed. Targeting datasets of hundreds to tens-of-thousands of documents on shared hosting where Elasticsearch or Meilisearch deployment is impractical, it trades scalability for radical portability. PHP developers on constrained infrastructure finally have a composable, dependency-free search primitive worth benchmarking.