There is more than one way to upgrade CentOS 6 to PHP 5.5; the following is a suggestion only. Consult a reference for additional options. To install PHP 5.5 on CentOS 6.

To specify a version you do: yum install php-5.3.3-14 This assumes that php-5.3.3-14 is available in the repos that your staging server. Epson Lq Series 1(136 Driver Windows 7 Download. To see available php versions do: yum list php or yum search php and peruse the list it gives you. I am on a CentOS6 box right now and it comes with php-5.3.3-14.

I am assuming you are on Fedora since you mention php 5.4. C Datagridview Edit Cell Update Database In Php there. Would it not be more advisable if you build your staging server with the same OS and repo sources as your production? I think folks will be able to help you more if you state what OS versions and packages and what repositories are available to your production server. I might be wrong but i think that php rpms must also match the apache they are built for as a module.