I update my server, and face error about xxx conflict php-5.x.x.x
Search via google, the solution is
1. Remove php ( OMG, too many packet relative about php ... ) (x)
and I find that's about openmail function ... anyway do point 2.
2. Skip update php ( An ... I try this and it works ) (o)
all done, I still feel I need to update php, so I go into yum base folder, then force upgrade it.