Package php56w-common is obsoleted by php-common, but obsoleting package does not provide for requirements
--> Finished Dependency Resolution
Error: Package: php56w-opcache-5.6.8-1.w6.x86_64 (webtatic)
           Requires: php56w-common(x86-64) = 5.6.8-1.w6
           Available: php56w-common-5.6.4-1.w6.x86_64 (webtatic)
               php56w-common(x86-64) = 5.6.4-1.w6
           Available: php56w-common-5.6.5-1.w6.x86_64 (webtatic)
               php56w-common(x86-64) = 5.6.5-1.w6
           Available: php56w-common-5.6.6-1.w6.x86_64 (webtatic)
               php56w-common(x86-64) = 5.6.6-1.w6
           Available: php56w-common-5.6.7-1.w6.x86_64 (webtatic)
               php56w-common(x86-64) = 5.6.7-1.w6
           Available: php56w-common-5.6.8-1.w6.x86_64 (webtatic)
               php56w-common(x86-64) = 5.6.8-1.w6
Error: Package: php-5.6.8-1.el6.remi.x86_64 (remi-php56)
           Requires: httpd-mmn = 20051115
           Installed: httpd-2.4.6-31.el7.centos.x86_64 (@base)
               httpd-mmn = 20120211
               httpd-mmn = 20120211x8664
               httpd-mmn = 20120211-x86-64