Document gmp_random_seed() function

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@337506 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Thomas Punt 2015-08-16 20:22:31 +00:00
parent 784c7b502d
commit dd3d8ba784
2 changed files with 120 additions and 0 deletions

View file

@ -0,0 +1,119 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 333674 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.gmp-random-seed">
<refnamediv>
<refname>gmp_random_seed</refname>
<refpurpose>Sets the RNG seed</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>mixed</type><methodname>gmp_random_seed</methodname>
<methodparam><type>mixed</type><parameter>seed</parameter></methodparam>
</methodsynopsis>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>seed</parameter></term>
<listitem>
<para>
The seed to be set for the <function>gmp_random</function>,
<function>gmp_random_bits</function>, and
<function>gmp_random_range</function> functions.
</para>
&gmp.parameter;
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns &null; on success.
</para>
</refsect1>
<refsect1 role="errors"><!-- {{{ -->
&reftitle.errors;
<para>
Issues an <constant>E_WARNING</constant> and returns &false; if
<parameter>seed</parameter> is not valid.
</para>
</refsect1><!-- }}} -->
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>gmp_random_seed</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
// set the seed
gmp_random_seed(100);
var_dump(gmp_strval(gmp_random(1)));
// set the seed to something else
gmp_random_seed(gmp_init(-100));
var_dump(gmp_strval(gmp_random_bits(10)));
// set the seed to something invalid
var_dump(gmp_random_seed('not a number'));
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
string(20) "15370156633245019617"
string(3) "683"
Warning: gmp_random_seed(): Unable to convert variable to GMP - string is not an integer in %s on line %d
bool(false)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>gmp_init</function></member>
<member><function>gmp_random</function></member>
<member><function>gmp_random_bits</function></member>
<member><function>gmp_random_range</function></member>
</simplelist>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->

View file

@ -40,6 +40,7 @@
<function name='gmp_random' from='PHP 4 &gt;= 4.0.4, PHP 5'/>
<function name='gmp_random_bits' from='PHP 5 &gt;= 5.6.3'/>
<function name='gmp_random_range' from='PHP 5 &gt;= 5.6.3'/>
<function name='gmp_random_seed' from='PHP 7'/>
<function name='gmp_root' from='PHP 5 &gt;= 5.6.0'/>
<function name='gmp_rootrem' from='PHP 5 &gt;= 5.6.0'/>
<function name='gmp_scan0' from='PHP 4 &gt;= 4.0.4, PHP 5'/>