<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >mysql_stat</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="MySQL 函数" HREF="ref.mysql.html"><LINK REL="PREVIOUS" TITLE="mysql_select_db" HREF="function.mysql-select-db.html"><LINK REL="NEXT" TITLE="mysql_tablename" HREF="function.mysql-tablename.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.mysql-select-db.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.mysql-tablename.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mysql-stat" ></A >mysql_stat</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN136415" ></A ><P > (PHP 4 >= 4.3.0, PHP 5)</P >mysql_stat -- 取得当前系统状态</DIV ><DIV CLASS="refsect1" ><A NAME="AEN136418" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >mysql_stat</B > ( [resource link_identifier] )<BR ></BR ><P > <B CLASS="function" >mysql_stat()</B > 返回当前服务器状态。 </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >注意: </B > <B CLASS="function" >mysql_stat()</B > 目前只返回 uptime,threads,queries,open tables,flush tables 和 queries per second。要得到其它状态变量的完整列表,只能使用 SQL 命令 SHOW STATUS。 </P ></BLOCKQUOTE ></DIV ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN136432" ></A ><P ><B >例 1. <B CLASS="function" >mysql_stat()</B > 例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">mysql_connect</font><font color="#007700">(</font><font color="#DD0000">'localhost'</font><font color="#007700">, </font><font color="#DD0000">"mysql_user"</font><font color="#007700">, </font><font color="#DD0000">"mysql_password"</font><font color="#007700">);<br /></font><font color="#0000BB">$status </font><font color="#007700">= </font><font color="#0000BB">explode</font><font color="#007700">(</font><font color="#DD0000">' '</font><font color="#007700">, </font><font color="#0000BB">mysql_stat</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">));<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$status</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P > 以上例子将产生如下输出: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >Array ( [0] => Uptime: 5380 [1] => Threads: 2 [2] => Questions: 1321299 [3] => Slow queries: 0 [4] => Opens: 26 [5] => Flush tables: 1 [6] => Open tables: 17 [7] => Queries per second avg: 245.595 )</PRE ></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.mysql-select-db.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.mysql-tablename.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mysql_select_db</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mysql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >mysql_tablename</TD ></TR ></TABLE ></DIV ></BODY ></HTML >