And what about earlier versions of PHP? 🙃

Since v Php 8.0 this function does nothing -> https://www.php.net/manual/en/function.curl-close.php
Edit: Prior to 8.0, curl handles are closed automatically anyway on script shutdown, so it was not explicitely required even before 8.0

mPDF is officially supported from PHP 5.6
Edit: I'd like the function to be called when appropriate, in case of longer running scripts. Just as imagedestroy was handled

I understand. In this case, i close this PR. I don't have time now to do this in the more proper way.

shame, but thanks for the initial effort anyway.

I create new PR #2122