Building PHP 5.4 From Source On Debian Squeeze
This tutorial describes how you can build PHP 5.4 from source on Debian Squeeze. Later on, we will install more modules through PECL and add it as an additional PHP version to ISPConfig’s dropdown. At the end you will have a fully function PHP 5.4 installation which is selectable within the ISPConfig interface and a .deb package than can be used on other server as well.
Read more at HowtoForge
