<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >xpath_eval_expression</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="Manual do PHP" HREF="index.html"><LINK REL="UP" TITLE="DOM XML Functions" HREF="ref.domxml.html"><LINK REL="PREVIOUS" TITLE="domxml_xslt_version" HREF="function.domxml-xslt-version.html"><LINK REL="NEXT" TITLE="xpath_eval" HREF="function.xpath-eval.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Manual do PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.domxml-xslt-version.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.xpath-eval.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.xpath-eval-expression" ></A >xpath_eval_expression</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN42565" ></A ><P > (PHP 4 >= 4.0.4, PECL)</P >xpath_eval_expression -- Evaluates the XPath Location Path in the given string </DIV ><DIV CLASS="refsect1" ><A NAME="AEN42568" ></A ><H2 >Descrição</H2 >class <B CLASS="classname" >XPathContext</B > { <BR ></BR >XPathObject <B CLASS="methodname" >xpath_eval_expression</B > ( string expression [, domnode contextnode] )<BR ></BR >}XPathObject <B CLASS="methodname" >xpath_eval_expression</B > ( XPathContext xpath_context, string expression [, domnode contextnode] )<BR ></BR ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN42595" ></A ><P ><B >Exemplo 1. <B CLASS="function" >xpath_eval_expression()</B > Example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br /></font><font color="#007700">include(</font><font color="#DD0000">"example.inc"</font><font color="#007700">);<br /><br />if (!</font><font color="#0000BB">$dom </font><font color="#007700">= </font><font color="#0000BB">domxml_open_mem</font><font color="#007700">(</font><font color="#0000BB">$xmlstr</font><font color="#007700">)) {<br /> echo </font><font color="#DD0000">"Error while parsing the document\n"</font><font color="#007700">;<br /> exit;<br />}<br /><br /></font><font color="#0000BB">$xpath </font><font color="#007700">= </font><font color="#0000BB">xpath_new_context</font><font color="#007700">(</font><font color="#0000BB">$dom</font><font color="#007700">);<br /></font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">xpath_eval_expression</font><font color="#007700">(</font><font color="#0000BB">$xpath</font><font color="#007700">, </font><font color="#DD0000">'/chapter/@language'</font><font color="#007700">));<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >O exemplo acima irá imprimir:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >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) } } }</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > See also <A HREF="function.xpath-eval.html" ><B CLASS="function" >xpath_eval()</B ></A >. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.domxml-xslt-version.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Principal</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.xpath-eval.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >domxml_xslt_version</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.domxml.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >xpath_eval</TD ></TR ></TABLE ></DIV ></BODY ></HTML >