<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >array_walk_recursive</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="Arrays" HREF="ref.array.html"><LINK REL="PREVIOUS" TITLE="array_values" HREF="function.array-values.html"><LINK REL="NEXT" TITLE="array_walk" HREF="function.array-walk.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.array-values.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.array-walk.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.array-walk-recursive" ></A >array_walk_recursive</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN12082" ></A ><P > (PHP 5)</P >array_walk_recursive -- Apply a user function recursively to every member of an array</DIV ><DIV CLASS="refsect1" ><A NAME="AEN12085" ></A ><H2 >Description</H2 >bool <B CLASS="methodname" >array_walk_recursive</B > ( array &input, callback funcname [, mixed userdata] )<BR ></BR ><P > Applies the user-defined function <CODE CLASS="parameter" >funcname</CODE > to each element of the <CODE CLASS="parameter" >input</CODE > array. This function will recur into deeper arrays. Typically, <CODE CLASS="parameter" >funcname</CODE > takes on two parameters. The <CODE CLASS="parameter" >input</CODE > parameter's value being the first, and the key/index second. If the optional <CODE CLASS="parameter" >userdata</CODE > parameter is supplied, it will be passed as the third parameter to the callback <CODE CLASS="parameter" >funcname</CODE >. </P ><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 CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >Nota: </B > If <CODE CLASS="parameter" >funcname</CODE > needs to be working with the actual values of the array, specify the first parameter of <CODE CLASS="parameter" >funcname</CODE > as a <A HREF="language.references.html" >reference</A >. Then, any changes made to those elements will be made in the original array itself. </P ></BLOCKQUOTE ></DIV ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN12115" ></A ><P ><B >Exemplo 1. <B CLASS="function" >array_walk_recursive()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$sweet </font><font color="#007700">= array(</font><font color="#DD0000">'a' </font><font color="#007700">=> </font><font color="#DD0000">'apple'</font><font color="#007700">, </font><font color="#DD0000">'b' </font><font color="#007700">=> </font><font color="#DD0000">'banana'</font><font color="#007700">);<br /></font><font color="#0000BB">$fruits </font><font color="#007700">= array(</font><font color="#DD0000">'sweet' </font><font color="#007700">=> </font><font color="#0000BB">$sweet</font><font color="#007700">, </font><font color="#DD0000">'sour' </font><font color="#007700">=> </font><font color="#DD0000">'lemon'</font><font color="#007700">);<br /><br />function </font><font color="#0000BB">test_print</font><font color="#007700">(</font><font color="#0000BB">$item</font><font color="#007700">, </font><font color="#0000BB">$key</font><font color="#007700">)<br />{<br /> echo </font><font color="#DD0000">"$key holds $item</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br />}<br /><br /></font><font color="#0000BB">array_walk_recursive</font><font color="#007700">(</font><font color="#0000BB">$fruits</font><font color="#007700">, </font><font color="#DD0000">'test_print'</font><font color="#007700">);<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 ><code><font color="#000000"> a holds apple<br />b holds banana<br />sour holds lemon</font> </code></TD ></TR ></TABLE ><P > You may notice that the key 'sweet' is never displayed. Any key that holds an <A HREF="language.types.array.html" ><B CLASS="type" >array</B ></A > will not be passed to the function. </P ></DIV ></TD ></TR ></TABLE > </P ><P > See also <A HREF="function.array-walk.html" ><B CLASS="function" >array_walk()</B ></A >, and informações sobre o tipo <A HREF="language.pseudo-types.html#language.types.callback" >callback</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.array-values.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.array-walk.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >array_values</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.array.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >array_walk</TD ></TR ></TABLE ></DIV ></BODY ></HTML >