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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<!-- splitted from ./en/functions/info.xml, last change in rev 1.2 -->
<refentry id="function.phpversion">
<refnamediv>
<refname>phpversion</refname>
<refpurpose>Gets the current PHP version</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>string</type><methodname>phpversion</methodname>
<methodparam choice="opt"><type>string</type><parameter>extension</parameter></methodparam>
</methodsynopsis>
<para>
Returns a string containing the version of the currently running
PHP parser. If the optional <parameter>extension</parameter> parameter is
specified, <function>phpversion</function> returns the version of that
extension, or &false; if there is no version information associated or
the extension isn't enabled.
</para>
<note>
<para>
This information is also available in the predefined constant
<constant>PHP_VERSION</constant>.
</para>
</note>
<para>
<example>
<title><function>phpversion</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
// prints e.g. 'Current PHP version: 4.1.1'
echo 'Current PHP version: ' . phpversion();
// prints e.g. '2.0' or nothing if the extension isn't enabled
echo phpversion('tidy');
?>
]]>
</programlisting>
</example>
</para>
<para>
See also
<function>version_compare</function>,
<function>phpinfo</function>,
<function>phpcredits</function>,
<function>php_logo_guid</function>, and
<function>zend_version</function>.
</para>
</refsect1>
</refentry>
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sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
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sgml-parent-document:nil
sgml-default-dtd-file:"../../../../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
-->
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