I just have a look to RHEL 6 Beta
Some extensions available in Fedora are not in RHEL.
So the php-extras package could be adapted to provides them, taken from
5.3.1 sources (I could work on it, if you agree).
Here is the list :
I'm quite surprised for php-imap.
I don't see uw-imap nor libc-client in RHEL (uw-imap is in EPEL).
Joe can you give us more information about this ?
I think a lot of web applications (webmail, ticketing, and others) rely
on this extension.