Looking for something similar to Elasticsearch slop

I'm new to Elasticsearch and just learned about the "slop" feature. Are there similar features like slop in other languages (ideally PHP but open to learning about anything)?

Essentially, I'm looking for something that has slop in PHP (or another language) so that I can use it for searching page content. I'm familiar with Levenshtein distance and I can't use that, so any suggestions for what I can research would be much appreciated.

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