<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >DOMAttr->isId()</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 Functions" HREF="ref.dom.html"><LINK REL="PREVIOUS" TITLE="DOMAttr->__construct()" HREF="function.dom-domattr-construct.html"><LINK REL="NEXT" TITLE="DOMCharacterData->appendData()" HREF="function.dom-domcharacterdata-appenddata.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.dom-domattr-construct.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.dom-domcharacterdata-appenddata.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.dom-domattr-isid" ></A >DOMAttr->isId()</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN35057" ></A ><P > (no version information, might be only in CVS)</P >DOMAttr->isId() -- Checks if attribute is a defined ID </DIV ><DIV CLASS="refsect1" ><A NAME="AEN35060" ></A ><H2 >Descrição</H2 >class <B CLASS="classname" >DOMAttr</B > { <BR ></BR >bool <B CLASS="methodname" >isId</B > ( void )<BR ></BR >}<P > This function checks if the attribute is a defined ID. </P ><P > According to the DOM standard this requires a DTD which defines the attribute ID to be of type ID. You need to validate your document with <A HREF="function.dom-domdocument-validate.html" >DOMDocument->validate()</A > or <TT CLASS="literal" >DOMDocument::validateOnParse</TT > before using this function. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN35073" ></A ><H2 >Valores de retornado</H2 ><P > Retorna <TT CLASS="constant" ><B >TRUE</B ></TT > em caso de sucesso ou <TT CLASS="constant" ><B >FALSE</B ></TT > em falhas. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN35078" ></A ><H2 >Exemplos</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN35081" ></A ><P ><B >Exemplo 1. DOMAttr->isId() Example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br />$doc </font><font color="#007700">= new </font><font color="#0000BB">DomDocument</font><font color="#007700">;<br /><br /></font><font color="#FF8000">// We need to validate our document before refering to the id<br /></font><font color="#0000BB">$doc</font><font color="#007700">-></font><font color="#0000BB">validateOnParse </font><font color="#007700">= </font><font color="#0000BB">true</font><font color="#007700">;<br /></font><font color="#0000BB">$doc</font><font color="#007700">-></font><font color="#0000BB">Load</font><font color="#007700">(</font><font color="#DD0000">'book.xml'</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// We retrieve the attribute named id of the chapter element<br /></font><font color="#0000BB">$attr </font><font color="#007700">= </font><font color="#0000BB">$doc</font><font color="#007700">-></font><font color="#0000BB">getElementsByTagName</font><font color="#007700">(</font><font color="#DD0000">'chapter'</font><font color="#007700">)-></font><font color="#0000BB">item</font><font color="#007700">(</font><font color="#0000BB">0</font><font color="#007700">)-></font><font color="#0000BB">getAttributeNode</font><font color="#007700">(</font><font color="#DD0000">'id'</font><font color="#007700">);<br /><br /></font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">$attr</font><font color="#007700">-></font><font color="#0000BB">isId</font><font color="#007700">()); </font><font color="#FF8000">// bool(true)<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </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.dom-domattr-construct.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.dom-domcharacterdata-appenddata.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >DOMAttr->__construct()</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.dom.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >DOMCharacterData->appendData()</TD ></TR ></TABLE ></DIV ></BODY ></HTML >