usort() error

  • I get this unusual error from PHP:

    usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero

    I have included in the link section above a snipboard.io link since I cannot seem to add an image here, but I am wondering if the term ‘deprecated’ next to the notice I’m getting associated with the query, means the *plugin itself* is deprecated or if this is some kind of deprecated function or code for PHP 8.0.9 that is down to changee in that?

    In either case, think it is worth mentioning if you are continuing development.

    The page I need help with: [log in to see the link]

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