sourceforge.net),
was natively incorporated into version 4. This feature offers developers a means
for tracking user activity and preferences with unparalleled efficiency and ease.
Chapter 18 covers PHP??™s session-handling capabilities.
Encryption: The MCrypt (http://mcrypt.sourceforge.net) library was incorporated
into the default distribution, offering users both full and hash encryption
using encryption algorithms including Blowfish, MD5, SHA1, and TripleDES,
among others. Chapter 21 delves into PHP??™s encryption capabilities.
ISAPI support: ISAPI support offered users the ability to use PHP in conjunction
with Microsoft??™s IIS Web server. Chapter 2 shows you how to install PHP on both
the IIS and Apache Web servers.
4 CHAPTER 1 ?– I NTRODUCING PHP
Native COM/DCOM support: Another bonus for Windows users is PHP 4??™s ability
to access and instantiate COM objects. This functionality opened up a wide
range of interoperability with Windows applications.
Native Java support: In another boost to PHP??™s interoperability, support for binding
to Java objects from a PHP application was made available in version 4.0.
Perl Compatible Regular Expressions (PCRE) library: The Perl language has long
been heralded as the reigning royalty of the string-parsing kingdom. The developers
knew that powerful regular expression functionality would play a major role in the
widespread acceptance of PHP and opted to simply incorporate Perl??™s functionality
rather than reproduce it, rolling the PCRE library package into PHP??™s default distribution
(as of version 4.
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