<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >dba_handlers</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="Database (dbm-style) Abstraction Layer Functions" HREF="ref.dba.html"><LINK REL="PREVIOUS" TITLE="dba_firstkey" HREF="function.dba-firstkey.html"><LINK REL="NEXT" TITLE="dba_insert" HREF="function.dba-insert.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.dba-firstkey.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.dba-insert.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.dba-handlers" ></A >dba_handlers</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN33161" ></A ><P > (PHP 4 >= 4.3.0, PHP 5)</P >dba_handlers -- List all the handlers available</DIV ><DIV CLASS="refsect1" ><A NAME="AEN33164" ></A ><H2 >说明</H2 >array <B CLASS="methodname" >dba_handlers</B > ( [bool full_info] )<BR ></BR ><P > <B CLASS="function" >dba_handlers()</B > list all the handlers supported by this extension. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN33174" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >full_info</CODE ></DT ><DD ><P > Turns on/off full information display in the result. The default is <TT CLASS="constant" ><B >FALSE</B ></TT >. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN33184" ></A ><H2 >返回值</H2 ><P > Returns an array of database handlers. If <CODE CLASS="parameter" >full_info</CODE > is set to <TT CLASS="constant" ><B >TRUE</B ></TT >, the array will be associative with the handlers names as keys, and their version information as value. Otherwise, the result will be an indexed array of handlers names. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >注意: </B > When the internal cdb library is used you will see <TT CLASS="literal" >cdb</TT > and <TT CLASS="literal" >cdb_make</TT >. </P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN33193" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN33196" ></A ><P ><B >例 1. <B CLASS="function" >dba_handlers()</B > Example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br /></font><font color="#007700">echo </font><font color="#DD0000">"Available DBA handlers:\n"</font><font color="#007700">;<br />foreach (</font><font color="#0000BB">dba_handlers</font><font color="#007700">(</font><font color="#0000BB">true</font><font color="#007700">) as </font><font color="#0000BB">$handler_name </font><font color="#007700">=> </font><font color="#0000BB">$handler_version</font><font color="#007700">) {<br /> </font><font color="#FF8000">// clean the versions<br /> </font><font color="#0000BB">$handler_version </font><font color="#007700">= </font><font color="#0000BB">str_replace</font><font color="#007700">(</font><font color="#DD0000">'$'</font><font color="#007700">, </font><font color="#DD0000">''</font><font color="#007700">, </font><font color="#0000BB">$handler_version</font><font color="#007700">);<br /> echo </font><font color="#DD0000">" - $handler_name: $handler_version</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br />}<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >上例的输出类似于:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >Available DBA handlers: - cdb: 0.75, Revision: 1.3.2.3 - cdb_make: 0.75, Revision: 1.2.2.4 - db2: Sleepycat Software: Berkeley DB 2.7.7: (08/20/99) - inifile: 1.0, Revision: 1.6.2.3 - flatfile: 1.0, Revision: 1.5.2.4</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.dba-firstkey.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.dba-insert.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >dba_firstkey</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.dba.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >dba_insert</TD ></TR ></TABLE ></DIV ></BODY ></HTML >