Description of problem:
Thanks to the fix for bug #187891, recent php packages now Provide mod_php.
However there is also an old Obsoletes: mod_php in there that should probably
go, not least because if & when mod_php is split back out to a separate package,
this Obsoletes will probably get forgotten and cause pain :)
Version-Release number of selected component (if applicable): php-5.1.4-8
Thanks for the report, fixed in the -5.1.6 update: