Comment 3 for bug 1005909

Hello Robin,

I see the issue here, you have the old IUS php53 packages.
unfortunately Redhat decided to use the php53 name and we were forced
to change from php53 to php53u.

What you are going to need to do is migrate from the old IUS php53 package to php53u,
the easiest way to migrate would be to use the yum replace module to replace php53 with php53u:

  yum install yum-plugin-replace
  yum replace php53 --replace-with php53u

You can review all the IUS EL5 packages in our repos at:

  http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/

Please let us know if you have any issues or questions.

p.s. we are also available in irc.freenode.net #iuscommunity

Jeffrey-