This manual is written in XML using the DocBook XML DTD, using DSSSL (Document
Style and Semantics Specification Language) for formatting, and
experimentally the XSLT
(Extensible Stylesheet Language Transformations)
for maintenance and formatting.
Using XML as a source format gives
the ability to generate many output formats from the source
files, while only maintaining one source document for all formats.
The tools used for formatting HTML and
TeX versions are
Jade, written by James Clark; and The Modular DocBook Stylesheets,
written by Norman Walsh.
We use Microsoft HTML Help
Workshop to generate the Windows HTML Help format
of the manual, and of course PHP itself to do some
additional conversions and formatting.
The PHP manual is generated in various languages and formats, see
http://www.php.net/docs.php for additional details.
The XML source code may be downloaded from CVS and
viewed at http://cvs.php.net/. The
documentation is stored in the phpdoc module.