<?xml version="1.0" encoding="utf-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.gmp-random-bits">
 <refnamediv>
  <refname>gmp_random_bits</refname>
  <refpurpose>Random number</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>GMP</type><methodname>gmp_random_bits</methodname>
   <methodparam><type>integer</type><parameter>bits</parameter></methodparam>
  </methodsynopsis>
  <para>
   Generate a random number. The number will be between
   0 and (2 ** <parameter>bits</parameter>) - 1.
  </para>
  <para>
   <parameter>bits</parameter> must greater than 0, and the maximum value is restricted by available memory.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>bits</parameter></term>
     <listitem>
      <para>
       The number of bits.
      </para>
      &gmp.parameter; 
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   A random GMP number.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>gmp_random_bits</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$rand1 = gmp_random_bits(3); // random number from 0 to 7
$rand2 = gmp_random_bits(5); // random number from 0 to 31

echo gmp_strval($rand1) . "\n";
echo gmp_strval($rand2) . "\n";
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
3
15
]]>
    </screen>
   </example>
  </para>
 </refsect1>

</refentry>

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