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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<!-- Purpose: fileprocess.process -->
<!-- Membership: bundled -->
<reference id="ref.posix">
<title>POSIX Functions</title>
<titleabbrev>POSIX</titleabbrev>
<partintro>
<section id="posix.intro">
&reftitle.intro;
<para>
This module contains an interface to those functions defined in
the IEEE 1003.1 (POSIX.1) standards document which are not
accessible through other means. POSIX.1 for example defined the
open(), read(), write() and close() functions, too, which
traditionally have been part of PHP 3 for a long time. Some more
system specific functions have not been available before, though,
and this module tries to remedy this by providing easy access to
these functions.
</para>
<warning>
<para>
Sensitive data can be retrieved with the POSIX functions, e.g.
<function>posix_getpwnam</function> and friends. None of the
POSIX function perform any kind of access
checking when <link linkend="ini.safe-mode">safe mode</link> is enabled.
It's therefore <emphasis role="strong">strongly</emphasis> advised to
disable the POSIX extension at all (use
<literal>--disable-posix</literal> in your configure line) if you're
operating in such an environment.
</para>
</warning>
¬e.no-windows.extension;
</section>
&reference.posix.configure;
&reference.posix.constants;
<section id="posix.seealso">
&reftitle.seealso;
<para>
The section about <link
linkend="ref.pcntl">Process Control Functions</link>
maybe of interest for you.
</para>
</section>
</partintro>
&reference.posix.functions;
</reference>
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