mirror of
https://github.com/sigmasternchen/php-doc-en
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115 lines
2.7 KiB
XML
115 lines
2.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.abs" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>abs</refname>
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<refpurpose>Absolute value</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 class="union"><type>int</type><type>float</type></type><methodname>abs</methodname>
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<methodparam><type class="union"><type>int</type><type>float</type></type><parameter>num</parameter></methodparam>
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</methodsynopsis>
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<para>
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Returns the absolute value of <parameter>num</parameter>.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>num</parameter></term>
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<listitem>
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<para>
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The numeric value to process
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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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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The absolute value of <parameter>num</parameter>. If the
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argument <parameter>num</parameter> is
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of type <type>float</type>, the return type is also <type>float</type>,
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otherwise it is <type>int</type> (as <type>float</type> usually has a
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bigger value range than <type>int</type>).
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>8.0.0</entry>
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<entry>
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<parameter>num</parameter> no longer accepts internal objects which support
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numeric conversion.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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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>abs</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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echo abs(-4.2); // 4.2 (double/float)
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echo abs(5); // 5 (integer)
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echo abs(-5); // 5 (integer)
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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>gmp_abs</function></member>
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<member><function>gmp_sign</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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