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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.9 $ -->
<refentry xml:id="function.abs" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>abs</refname>
<refpurpose>Absolute value</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>number</type><methodname>abs</methodname>
<methodparam><type>mixed</type><parameter>number</parameter></methodparam>
</methodsynopsis>
<para>
Returns the absolute value of <parameter>number</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>number</parameter></term>
<listitem>
<para>
The numeric value to process
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The absoulte value of <parameter>number</parameter>. If the
argument <parameter>number</parameter> is
of type <type>float</type>, the return type is also <type>float</type>,
otherwise it is <type>integer</type> (as <type>float</type> usually has a
bigger value range than <type>integer</type>).
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>abs</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$abs = abs(-4.2); // $abs = 4.2; (double/float)
$abs2 = abs(5); // $abs2 = 5; (integer)
$abs3 = abs(-5); // $abs3 = 5; (integer)
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
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