Although some discrepancies do exist
among license variants, users are largely free to modify, redistribute, and integrate
the software into other products.
Open development and auditing process: Although not without incidents, open
source software has long enjoyed a stellar security record. Such high-quality
standards are a result of the open development and auditing process. Because
the source code is freely available for anyone to examine, security holes and
potential problems are rapidly found and fixed. This advantage was perhaps best
summarized by open source advocate Eric S. Raymond, who wrote ???Given enough
eyeballs, all bugs are shallow.???
Participation is encouraged: Development teams are not limited to a particular
organization. Anyone who has the interest and the ability is free to join the project.
The absence of member restrictions greatly enhances the talent pool for a given
project, ultimately contributing to a higher-quality product.
Summary
Understanding more about the PHP language??™s history and widely used versions is
going to prove quite useful as you become more acquainted with the language and
begin seeking out both hosting providers and third-party solutions. This chapter satisfied
that requirement by providing some insight into PHP??™s history and an overview of
version 4, 5, and 6??™s core features.
In Chapter 2, prepare to get your hands dirty, as you??™ll delve into the PHP installation
and configuration process, and learn more about what to look for when searching for
a Web hosting provider.
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