This CEEA is for the version of php is that is included in the centosplus repo for CentOS-4 ... this is not an update to the main CentOS-4 repo.
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Name : php
Version : 5.0.4 Vendor: CentOS
Release : 5.centos4

Install Date: (not installed)

Group : Development/Languages

Source RPM: php-5.0.4-4.centos4.src.rpm
License: The PHP License
Packager : Johnny Hughes <johnny@centos.org>
Summary : The PHP HTML-embedded scripting language. (PHP: Hypertext
Preprocessor)
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Update Information:
A new php5 handler was added so that files labeled .php5 will be treated as php files.