<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >imap_ping</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="IMAP, POP3 and NNTP Functions" HREF="ref.imap.html"><LINK REL="PREVIOUS" TITLE="imap_open" HREF="function.imap-open.html"><LINK REL="NEXT" TITLE="imap_qprint" HREF="function.imap-qprint.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.imap-open.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.imap-qprint.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.imap-ping" ></A >imap_ping</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN94356" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >imap_ping -- Check if the IMAP stream is still active</DIV ><DIV CLASS="refsect1" ><A NAME="AEN94359" ></A ><H2 >Descrição</H2 >bool <B CLASS="methodname" >imap_ping</B > ( resource imap_stream )<BR ></BR ><P > <B CLASS="function" >imap_ping()</B > pings the stream to see if it's still active. It may discover new mail; this is the preferred method for a periodic "new mail check" as well as a "keep alive" for servers which have inactivity timeout. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN94369" ></A ><H2 >Parâmetros</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" > imap_stream</CODE ></DT ><DD ><P >Um stream IMAP retornado por <A HREF="function.imap-open.html" ><B CLASS="function" >imap_open()</B ></A >.</P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN94379" ></A ><H2 >Valores de retornado</H2 ><P > Returns <TT CLASS="constant" ><B >TRUE</B ></TT > if the stream is still alive, <TT CLASS="constant" ><B >FALSE</B ></TT > otherwise. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN94384" ></A ><H2 >Exemplos</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN94387" ></A ><P ><B >Exemplo 1. <B CLASS="function" >imap_ping()</B > Example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br />$imap </font><font color="#007700">= </font><font color="#0000BB">imap_open</font><font color="#007700">(</font><font color="#DD0000">"{imap.example.org}"</font><font color="#007700">, </font><font color="#DD0000">"mailadmin"</font><font color="#007700">, </font><font color="#DD0000">"password"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// after some sleeping<br /></font><font color="#007700">if (!</font><font color="#0000BB">imap_ping</font><font color="#007700">(</font><font color="#0000BB">$imap</font><font color="#007700">)) {<br /> </font><font color="#FF8000">// do some stuff to reconnect<br /></font><font color="#007700">}<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.imap-open.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.imap-qprint.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >imap_open</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.imap.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >imap_qprint</TD ></TR ></TABLE ></DIV ></BODY ></HTML >