PHP is the language used to write web applications on Apache, which
forms the basis of the WWW. This book is for developers wishing to
develop low-cost applications that are portable across various operating
systems and web servers, scaleable to mammoth proportions, and capable
of integrating enterprise technologies such as Enterprise Java Beans or
COM components. It provides in-depth coverage of topics that are
normally otherwise overlooked and assumes a high level of programmer
maturity.