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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 332131 $ -->
<refentry xml:id="simplexmlelement.asxml" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>SimpleXMLElement::asXML</refname>
<refpurpose>
Return a well-formed XML string based on SimpleXML element
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>mixed</type><methodname>SimpleXMLElement::asXML</methodname>
<methodparam choice="opt"><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>
The <literal>asXML</literal> method formats the parent object's data
in XML version 1.0.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>filename</parameter></term>
<listitem>
<para>
If specified, the function writes the data to the file rather than
returning it.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
If the <parameter>filename</parameter> isn't specified, this function
returns a <type>string</type> on success and &false; on error. If the
parameter is specified, it returns &true; if the file was written
successfully and &false; otherwise.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Get XML</title>
<programlisting role="php">
<![CDATA[
<?php
$string = <<<XML
<a>
<b>
<c>text</c>
<c>stuff</c>
</b>
<d>
<c>code</c>
</d>
</a>
XML;
$xml = new SimpleXMLElement($string);
echo $xml->asXML();
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
<?xml version="1.0"?>
<a>
<b>
<c>text</c>
<c>stuff</c>
</b>
<d>
<c>code</c>
</d>
</a>
]]>
</screen>
</example>
</para>
<para>
<literal>asXML</literal> also works on Xpath results:
<example>
<title>Using asXML() on <methodname>SimpleXMLElement::xpath</methodname> results</title>
<programlisting role="php">
<![CDATA[
<?php
// Continued from example XML above.
/* Search for <a><b><c> */
$result = $xml->xpath('/a/b/c');
while(list( , $node) = each($result)) {
echo $node->asXML();
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
<c>text</c><c>stuff</c>
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><methodname>SimpleXMLElement::__toString</methodname></member>
<member><xref linkend="simplexml.examples-basic"/></member>
</simplelist>
</para>
</refsect1>
</refentry>
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