mirror of
https://github.com/sigmasternchen/php-doc-en
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ba5e388f61
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@310617 c90b9560-bf6c-de11-be94-00142212c4b1
92 lines
2.2 KiB
XML
92 lines
2.2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.pcntl-fork" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>pcntl_fork</refname>
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<refpurpose>Forks the currently running process</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>pcntl_fork</methodname>
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<void/>
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</methodsynopsis>
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<para>
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The <function>pcntl_fork</function> function creates a child
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process that differs from the parent process only in its PID and
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PPID. Please see your system's fork(2) man page for specific details as to
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how fork works on your system.
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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On success, the PID of the child process is returned in the
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parent's thread of execution, and a 0 is returned in the child's
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thread of execution. On failure, a -1 will be returned in the
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parent's context, no child process will be created, and a PHP
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error is raised.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>pcntl_fork</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$pid = pcntl_fork();
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if ($pid == -1) {
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die('could not fork');
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} else if ($pid) {
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// we are the parent
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pcntl_wait($status); //Protect against Zombie children
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} else {
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// we are the child
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}
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>pcntl_waitpid</function></member>
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<member><function>pcntl_signal</function></member>
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<member><function>setproctitle</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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