OP here.
I wrote this implementation to deeply understand the mechanics behind HNSW (layers, entry points, neighbor selection) without relying on external libraries.
While PHP isn't the typical choice for vector search engines, I found it surprisingly capable for this use case, especially with JIT enabled on PHP 8.x. It serves as a drop-in solution for PHP monoliths that need semantic search features without adding the complexity of a separate service like Qdrant or Pinecone.
If you want to jump straight to the code, the open-source repo is here: https://github.com/centamiv/vektor
Happy to answer any questions about the implementation details!
by rvnx
1 subcomments
Cool blog post, smart guy, very thoughtful and not a copy-paste of Python code like 99% of folks. Nice to see
by fithisux
1 subcomments
It makes perfect sense to implement it in a high level language that allows understandability.
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