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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<!-- splitted from ./en/functions/domxml.xml, last change in rev 1.29 -->
<refentry id="function.xpath-eval-expression">
<refnamediv>
<refname>xpath_eval_expression</refname>
<refpurpose>
Evaluates the XPath Location Path in the given string
</refpurpose>
</refnamediv>
<refsect1>
&reftitle.description;
<classsynopsis>
<ooclass><classname>XPathContext</classname></ooclass>
<methodsynopsis>
<type>XPathObject</type><methodname>xpath_eval_expression</methodname>
<methodparam><type>string</type><parameter>expression</parameter></methodparam>
<methodparam choice="opt"><type>domnode</type><parameter>contextnode</parameter></methodparam>
</methodsynopsis>
</classsynopsis>
<methodsynopsis>
<type>XPathObject</type><methodname>xpath_eval_expression</methodname>
<methodparam><type>XPathContext</type><parameter>xpath_context</parameter></methodparam>
<methodparam><type>string</type><parameter>expression</parameter></methodparam>
<methodparam choice="opt"><type>domnode</type><parameter>contextnode</parameter></methodparam>
</methodsynopsis>
<para>
<example>
<title><function>xpath_eval_expression</function> Example</title>
<programlisting role="php">
<![CDATA[
<?php
include("example.inc");
if (!$dom = domxml_open_mem($xmlstr)) {
echo "Error while parsing the document\n";
exit;
}
$xpath = xpath_new_context($dom);
var_dump(xpath_eval_expression($xpath, '/chapter/@language'));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
object(XPathObject)(2) {
["type"]=>
int(1)
["nodeset"]=>
array(1) {
[0]=>
object(domattribute)(5) {
["type"]=>
int(2)
["name"]=>
string(8) "language"
["value"]=>
string(2) "en"
[0]=>
int(7)
[1]=>
int(138004256)
}
}
}
]]>
</screen>
</example>
</para>
<para>
See also <function>xpath_eval</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
indent-tabs-mode:nil
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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