Split as an alias to explode

Hello, internal folks. We have join as an alias for implode so I think it makes sense to have split as an alias to explode, doesn't it? If I understood it correctly (I don't have any knowledge in PHP's internal code) this doesn't add a lot of maintenance complexity so I see no reason to not have it. I tried starting a PR but it's probably missing stuff (although it seems to work after I compiled and gave it a try). https://github.com/php/php-src/pull/19490 Since this is such a small change, I wouldn't expect it to require an RFC, but if it does, I'd be happy to write it. Thanks in advance for any feedback.