[php-src] Issue #8165: Cannot stream request using CURLOPT_READFUNCTION without chunked encoding

Issue: https://github.com/php/php-src/issues/8165 Comment Author: cmb69 > Do you think we could set CURLOPT_POSTFIELDSIZE depending on the content-length header to make > it more intuitive? That would require PHP to actually parse the headers passed via CURLOPT_HTTPHEADER; not sure whether that's worth it, and that change might break some code. Maybe we should just document that users need to set Transfer-Encoding and Content-Length to avoid this issue. Or maybe we should introduce a new option (say CURLOPT_READFUNCTION_LENGTH) which allows to set the length explicitly. It might be sensible to write to the internals mailing list to get more feedback on this issue.