I expected a toy project, but it is a usable library, which required a lot of work. Good job on delivering. A few comments:
After reading "composer.json", I thought that the tests used a custom framework. I'm glad the project does not suffer from NIH syndrome, but the dev dependency on PHPUnit should be declared.
There should a warning that it's only meant for some Western Latin languages. The normalization of the input is built on a character table for a handful of cases. That's not enough for some Latin languages, e.g. Turkish. And any input with Cyrillic, Arabic, CJK and so on, will be ignored.
There is no Unicode normalization or cleanup. Real-life input have many corner cases, e.g. diacritics next to the characters, or invisible characters inside a word to prevent hyphenation. Unless I'm mistaken, this engine would treat the NFD form "fête" as "fe te", instead of the expected "fete", which the NFKD form "fête" produces. I suggest using ext-intl for Unicode normalization, at least as an option.
Lastly, I can't think of a use case for this library. I've always had access to some external service (MySQL, Postgresql, Manticore Search, Solr, etc.) or to a PHP extension for a local Sqlite with FTS. Even for hobby projects, I haven't deployed to a shared hosting for more than two decades.
Thank you for the detailed feedback, it's genuinely valuable.
You're right on all technical points : PHPUnit missing from dev dependencies is an oversight I'll fix, and the Unicode limitations are real and should be clearly documented. The NFD/NFKD case is a good catch.
On the use case: fair point. My motivation came from testing MySQL and SQLite full-text search on a shared OVH hosting : the performance with filters was consistently disappointing. That's the itch this scratches. I understand it doesn't match your experience, and that's perfectly legitimate.
I would actually reconsider adding phpunit as a dev dependency. It is a tool that runs independently from your project. Therefore it should not live in composer. I would recommend declaring the phar dependency with phive.
> I would recommend declaring the phar dependency with phive
+1. This eliminates a whole class of bugs in which you declared phpunit as a dev dependency but end up using a class that it brought in without declaring as a regular dependency. Without an external linter, you can’t really catch that until your production code doesn’t bring the class in and throws a fatal error.
2. That doesn’t apply to PHPUnit specifically, but if you, for example, import PHP-cs-fixer as dev dependency, it will bring symfony/console, and if you rely on that on your own code without importing it on composer.json as a regular dependency, the class will be missing when you composer install for production.
Ok I get what you're saying now, that's fair. Tbh I mainly do Symfony so most of what dev-dependencies use are already in the dependencies for me so it never happened
have a phpunit.xml or something where you can document what version of PHPUnit is required to run the tests for this library. Since there are often deprecations and breakages between major versions of PHPUnit where something gets removed and such
The zf1s/zend-search-lucene fork still works and gets occasional updates, but it's essentially legacy maintenance on a PHP 5.3-era codebase. It crashed on PHP 7 for a while, and the original ZF team themselves recommended moving on.
Loupe is a great project and more feature-rich than php-fts (stemming, geo, Damerau-Levenshtein typo tolerance). The dependency difference isn't just about Composer packages. Loupe requires pdo_sqlite and SQLite >= 3.35.0, which isn't guaranteed on shared hosting.
Great tool. Does it work with german umlaut (äöü)?
I find it very useful because shared hosting is still big for me. I use ultra cheap shared hosting for nearly everything. No Server maintainance and no funky serverless stuff
Not quite a comparable alternative. I use Pagefind and it's great for static sites but the search is all client side JS, there's no PHP (or otherwise) client to use it's generated index on the server.
A comparable alternative might be TNTSearch: https://github.com/teamtnt/tntsearch though that requires some (common) PHP extensions to be available, which this library does not require.
After reading "composer.json", I thought that the tests used a custom framework. I'm glad the project does not suffer from NIH syndrome, but the dev dependency on PHPUnit should be declared.
There should a warning that it's only meant for some Western Latin languages. The normalization of the input is built on a character table for a handful of cases. That's not enough for some Latin languages, e.g. Turkish. And any input with Cyrillic, Arabic, CJK and so on, will be ignored.
There is no Unicode normalization or cleanup. Real-life input have many corner cases, e.g. diacritics next to the characters, or invisible characters inside a word to prevent hyphenation. Unless I'm mistaken, this engine would treat the NFD form "fête" as "fe te", instead of the expected "fete", which the NFKD form "fête" produces. I suggest using ext-intl for Unicode normalization, at least as an option.
Lastly, I can't think of a use case for this library. I've always had access to some external service (MySQL, Postgresql, Manticore Search, Solr, etc.) or to a PHP extension for a local Sqlite with FTS. Even for hobby projects, I haven't deployed to a shared hosting for more than two decades.
You're right on all technical points : PHPUnit missing from dev dependencies is an oversight I'll fix, and the Unicode limitations are real and should be clearly documented. The NFD/NFKD case is a good catch.
On the use case: fair point. My motivation came from testing MySQL and SQLite full-text search on a shared OVH hosting : the performance with filters was consistently disappointing. That's the itch this scratches. I understand it doesn't match your experience, and that's perfectly legitimate.
https://docs.phpunit.de/en/12.5/installation.html#phar-or-co...
I find this project very impressive and have bookmarked it for potential use in future projects. Thank you for making this.
+1. This eliminates a whole class of bugs in which you declared phpunit as a dev dependency but end up using a class that it brought in without declaring as a regular dependency. Without an external linter, you can’t really catch that until your production code doesn’t bring the class in and throws a fatal error.
2. If you use phpunit class in prod code, you deserve to get a fatal error
2. That doesn’t apply to PHPUnit specifically, but if you, for example, import PHP-cs-fixer as dev dependency, it will bring symfony/console, and if you rely on that on your own code without importing it on composer.json as a regular dependency, the class will be missing when you composer install for production.
I built a ChatGPT/claude history search tool and it works surprisingly well.
There are other tools also. Not to detract from this tool but just to inform people about alternatives.
A comparable alternative might be TNTSearch: https://github.com/teamtnt/tntsearch though that requires some (common) PHP extensions to be available, which this library does not require.