Notice: this RPM are build with:

New in this release, taken from rawhide:

YUM is the simplest solution:

yum --enablerepo=remi update php-\*

If you still prefer the download (is it possible ?), see the repository

Warning : la lecture des documentations suivantes est utile (indispensable dans le cas d'une mise à jour depuis les versions 5.0.x ou 5.1.x) :

This will probably be the latest 5.2.x update before PHP 5.3.0 release (prepare your migration)