Centos updated PHP x86_64 rpm's are here for you to download.
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Index of /php/php-5.2.13/SRPMS/

Icon  Name                                      Last modified      Size  Description
[DIR] Parent Directory                                               -   
[   ] php-5.2.13-1.src.rpm                      02-Mar-2010 20:07   11M  
[   ] php-eaccelerator-5.2.13_0.9.5.3-1.src.rpm 02-Mar-2010 20:15  547K  
[   ] php-extras-5.2.13-1.src.rpm               02-Mar-2010 20:13   11M