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>dba_handlers</H1
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><P
>    (PHP 4 &#62;= 4.3.0, PHP 5)</P
>dba_handlers&nbsp;--&nbsp;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
>&#13;   <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
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>full_info</CODE
></DT
><DD
><P
>&#13;       Turns on/off full information display in the result. The default is
       <TT
CLASS="constant"
><B
>FALSE</B
></TT
>.
      </P
></DD
></DL
></DIV
>
  </P
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CLASS="refsect1"
><A
NAME="AEN33184"
></A
><H2
>返回值</H2
><P
>&#13;   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
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><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
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><H2
>范例</H2
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></A
><P
><B
>例 1. <B
CLASS="function"
>dba_handlers()</B
> Example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?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">$handler_name </font><font color="#007700">=&gt; </font><font color="#0000BB">$handler_version</font><font color="#007700">) {<br />&nbsp;&nbsp;</font><font color="#FF8000">// clean the versions<br />&nbsp;&nbsp;</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 />&nbsp;&nbsp;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">?&gt;</font>
</font>
</code></TD
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><P
>上例的输出类似于：</P
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>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
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