<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >php_uname</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="PHP Options&Information" HREF="ref.info.html"><LINK REL="PREVIOUS" TITLE="php_sapi_name" HREF="function.php-sapi-name.html"><LINK REL="NEXT" TITLE="phpcredits" HREF="function.phpcredits.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.php-sapi-name.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.phpcredits.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.php-uname" ></A >php_uname</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN181953" ></A ><P > (PHP 4 >= 4.0.2, PHP 5)</P >php_uname -- Returns information about the operating system PHP is running on</DIV ><DIV CLASS="refsect1" ><A NAME="AEN181956" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >php_uname</B > ( [string mode] )<BR ></BR ><P > <B CLASS="function" >php_uname()</B > returns a description of the operating system PHP is running on. For the name of just the operating system, consider using the <TT CLASS="constant" ><B >PHP_OS</B ></TT > constant, but be reminded this constant will contain the operating system PHP was <SPAN CLASS="emphasis" ><I CLASS="emphasis" >built</I ></SPAN > on. </P ><P > On Unix, the output reverts to displaying the operating system information PHP was built on if it cannot determine the currently running OS. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN181969" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >mode</CODE ></DT ><DD ><P > <CODE CLASS="parameter" >mode</CODE > is a single character that defines what information is returned: <P ></P ><UL ><LI ><P > <TT CLASS="literal" >'a'</TT >: This is the default. Contains all modes in the sequence <TT CLASS="literal" >"s n r v m"</TT >. </P ></LI ><LI ><P > <TT CLASS="literal" >'s'</TT >: Operating system name. eg. <TT CLASS="literal" >FreeBSD</TT >. </P ></LI ><LI ><P > <TT CLASS="literal" >'n'</TT >: Host name. eg. <TT CLASS="literal" >localhost.example.com</TT >. </P ></LI ><LI ><P > <TT CLASS="literal" >'r'</TT >: Release name. eg. <TT CLASS="literal" >5.1.2-RELEASE</TT >. </P ></LI ><LI ><P > <TT CLASS="literal" >'v'</TT >: Version information. Varies a lot between operating systems. </P ></LI ><LI ><P > <TT CLASS="literal" >'m'</TT >: Machine type. eg. <TT CLASS="literal" >i386</TT >. </P ></LI ></UL > </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN182003" ></A ><H2 >返回值</H2 ><P > Returns the description, as a string. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN182006" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN182009" ></A ><P ><B >例 1. Some <B CLASS="function" >php_uname()</B > examples</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /></font><font color="#007700">echo </font><font color="#0000BB">php_uname</font><font color="#007700">();<br />echo </font><font color="#0000BB">PHP_OS</font><font color="#007700">;<br /><br /></font><font color="#FF8000">/* Some possible outputs:<br />Linux localhost 2.4.21-0.13mdk #1 Fri Mar 14 15:08:06 EST 2003 i686<br />Linux<br /><br />FreeBSD localhost 3.2-RELEASE #15: Mon Dec 17 08:46:02 GMT 2001<br />FreeBSD<br /><br />Windows NT XN1 5.1 build 2600<br />WINNT<br />*/<br /><br /></font><font color="#007700">if (</font><font color="#0000BB">strtoupper</font><font color="#007700">(</font><font color="#0000BB">substr</font><font color="#007700">(</font><font color="#0000BB">PHP_OS</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">3</font><font color="#007700">)) === </font><font color="#DD0000">'WIN'</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">'This is a server using Windows!'</font><font color="#007700">;<br />} else {<br /> echo </font><font color="#DD0000">'This is a server not using Windows!'</font><font color="#007700">;<br />}<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > There are also some related <A HREF="language.constants.predefined.html" > Predefined PHP constants</A > that may come in handy, for example: <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN182015" ></A ><P ><B >例 2. A few OS related constant examples</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /></font><font color="#FF8000">// *nix<br /></font><font color="#007700">echo </font><font color="#0000BB">DIRECTORY_SEPARATOR</font><font color="#007700">; </font><font color="#FF8000">// /<br /></font><font color="#007700">echo </font><font color="#0000BB">PHP_SHLIB_SUFFIX</font><font color="#007700">; </font><font color="#FF8000">// so<br /></font><font color="#007700">echo </font><font color="#0000BB">PATH_SEPARATOR</font><font color="#007700">; </font><font color="#FF8000">// :<br /><br />// Win*<br /></font><font color="#007700">echo </font><font color="#0000BB">DIRECTORY_SEPARATOR</font><font color="#007700">; </font><font color="#FF8000">// \<br /></font><font color="#007700">echo </font><font color="#0000BB">PHP_SHLIB_SUFFIX</font><font color="#007700">; </font><font color="#FF8000">// dll<br /></font><font color="#007700">echo </font><font color="#0000BB">PATH_SEPARATOR</font><font color="#007700">; </font><font color="#FF8000">// ;<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN182018" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.phpversion.html" ><B CLASS="function" >phpversion()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.php-sapi-name.html" ><B CLASS="function" >php_sapi_name()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.phpinfo.html" ><B CLASS="function" >phpinfo()</B ></A ></TD ></TR ></TBODY ></TABLE ><P ></P > </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.php-sapi-name.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.phpcredits.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >php_sapi_name</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.info.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >phpcredits</TD ></TR ></TABLE ></DIV ></BODY ></HTML >