Programming PHP

XSLT
The eXtensible Stylesheet Language Transformation (XSLT) extension uses the Sablotron
library to provide XSLT functionality to PHP scripts. XSLT provides powerful templating
features to create HTML and XML documents. See Chapter 11 for an introduction to using
XSLT.
To use it, you must install the Sablotron library and compile PHP with the --withsablot[=DIR]
directive.
YAZ
YAZ is a toolkit that implements the Z39.50 protocol for retrieving information from
remote servers.
To use it, you must install the YAZ library and compile PHP with the --with-yaz[=DIR]
directive.
YP/NIS
NIS (formerly Yellow Pages) allows management and sharing of important administrative
files, such as the the password file, across a network.
To use the YP/NIS extension, you must compile PHP with the --enable-yp directive.
ZIP Files
The .zip extension allows PHP scripts to access files compressed in the ZIP format; it does
not allow writing the files, just access to the files inside ZIP archives.
To use it, you must install the ZZipLib library and compile PHP with the --with-zip[=DIR]
directive.
zlib Compression
This extension uses the zlib library to read and write gzip-compressed files; many of the
standard filesystem functions are replicated in this extension and can work with
compressed or uncompressed files.
To enable this extension, you must install zlib, Version 1.0.9 or later, and compile PHP
with the --with-zlib[=DIR] directive.
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