<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >is_subclass_of</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="Classes e Objetos" HREF="ref.classobj.html"><LINK REL="PREVIOUS" TITLE="is_a" HREF="function.is-a.html"><LINK REL="NEXT" TITLE="method_exists" HREF="function.method-exists.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.is-a.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.method-exists.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.is-subclass-of" ></A >is_subclass_of</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN15806" ></A ><P > (PHP 4, PHP 5)</P >is_subclass_of -- Retorna <TT CLASS="constant" ><B >TRUE</B ></TT > se o objeto tem esta classe como uma de suas classes pai </DIV ><DIV CLASS="refsect1" ><A NAME="AEN15810" ></A ><H2 >Descrição</H2 >bool <B CLASS="methodname" >is_subclass_of</B > ( object object, string class_name )<BR ></BR ><P > Esta função retorna <TT CLASS="constant" ><B >TRUE</B ></TT > se o objeto <CODE CLASS="parameter" >object</CODE >, pertence a uma classe que é uma sub-classe de <CODE CLASS="parameter" >class_name</CODE >, caso contrário retorna <TT CLASS="constant" ><B >FALSE</B ></TT >. </P ><P > Veja também <A HREF="function.get-class.html" ><B CLASS="function" >get_class()</B ></A >, <A HREF="function.get-parent-class.html" ><B CLASS="function" >get_parent_class()</B ></A > e <A HREF="function.is-a.html" ><B CLASS="function" >is_a()</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.is-a.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.method-exists.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >is_a</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.classobj.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >method_exists</TD ></TR ></TABLE ></DIV ></BODY ></HTML >