<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >getservbyname</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="Network Functions" HREF="ref.network.html"><LINK REL="PREVIOUS" TITLE="getprotobynumber" HREF="function.getprotobynumber.html"><LINK REL="NEXT" TITLE="getservbyport" HREF="function.getservbyport.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" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.getprotobynumber.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.getservbyport.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.getservbyname" ></A >getservbyname</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN149253" ></A ><P > (PHP 4, PHP 5)</P >getservbyname -- Get port number associated with an Internet service and protocol </DIV ><DIV CLASS="refsect1" ><A NAME="AEN149256" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >getservbyname</B > ( string service, string protocol )<BR ></BR ><P > <B CLASS="function" >getservbyname()</B > returns the Internet port which corresponds to <CODE CLASS="parameter" >service</CODE > for the specified <CODE CLASS="parameter" >protocol</CODE > as per <TT CLASS="filename" >/etc/services</TT >. <CODE CLASS="parameter" >protocol</CODE > is either <TT CLASS="literal" >"tcp"</TT > or <TT CLASS="literal" >"udp"</TT > (in lowercase). Returns <TT CLASS="constant" ><B >FALSE</B ></TT > if <CODE CLASS="parameter" >service</CODE > or <CODE CLASS="parameter" >protocol</CODE > is not found. </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN149279" ></A ><P ><B >例 1. <B CLASS="function" >getservbyname()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$services </font><font color="#007700">= array(</font><font color="#DD0000">'http'</font><font color="#007700">, </font><font color="#DD0000">'ftp'</font><font color="#007700">, </font><font color="#DD0000">'ssh'</font><font color="#007700">, </font><font color="#DD0000">'telnet'</font><font color="#007700">, </font><font color="#DD0000">'imap'</font><font color="#007700">, <br /></font><font color="#DD0000">'smtp'</font><font color="#007700">, </font><font color="#DD0000">'nicname'</font><font color="#007700">, </font><font color="#DD0000">'gopher'</font><font color="#007700">, </font><font color="#DD0000">'finger'</font><font color="#007700">, </font><font color="#DD0000">'pop3'</font><font color="#007700">, </font><font color="#DD0000">'www'</font><font color="#007700">);<br /><br />foreach (</font><font color="#0000BB">$services </font><font color="#007700">as </font><font color="#0000BB">$service</font><font color="#007700">) { <br /> </font><font color="#0000BB">$port </font><font color="#007700">= </font><font color="#0000BB">getservbyname</font><font color="#007700">(</font><font color="#0000BB">$service</font><font color="#007700">, </font><font color="#DD0000">'tcp'</font><font color="#007700">);<br /> echo </font><font color="#0000BB">$service </font><font color="#007700">. </font><font color="#DD0000">": " </font><font color="#007700">. </font><font color="#0000BB">$port </font><font color="#007700">. </font><font color="#DD0000">"<br />\n"</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > For complete list of port numbers see: http://www.iana.org/assignments/port-numbers. </P ><P > See also: <A HREF="function.getservbyport.html" ><B CLASS="function" >getservbyport()</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.getprotobynumber.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.getservbyport.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >getprotobynumber</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.network.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >getservbyport</TD ></TR ></TABLE ></DIV ></BODY ></HTML >