What's a solid but basic search algorithm for php?

Question

I am working on a project that involves searching for videos, these videos are tagged similar to how questions are tagged on stack overflow. I was wondering if anyone knows of a good 'tag-based' search algorithm.

Thanks!

Answer 1

Depending on what operations (write ? read ? both ?) you plan to use the most, there are different approaches.

Here an interesting reading: Tags: Database schemas comparing some well-known website tags schema.