Hi all,
while working on a fix[1] for bug #80259[2], I noticed that
iconv_mime_decode() and mb_decode_mimeheader() collapse all whitespace
after a case folding marker (CRLF) to a single space[3]. This appears
to be in violation of RFC 5322, section 2.2.3:
| Unfolding is accomplished by simply removing any CRLF
| that is immediately followed by WSP.
imap_utf8() properly keeps the whitespace. (ext/imap is not available
on 3v4l.org)
I wonder whether it's worth to fix it, due to the obvious BC break, or
whether we want to treat that as a documentation issue. If we're going
for a fix (what I would suggest), which version should that target?
[1] https://github.com/php/php-src/pull/6865
[2] https://bugs.php.net/80259
[3] https://3v4l.org/E92VT
--
Christoph M. Becker