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>PDOStatement-&#62;nextRowset()</H1
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NAME="AEN178023"
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><P
>    (no version information, might be only in CVS)</P
>PDOStatement-&#62;nextRowset()&nbsp;--&nbsp;
   Advances to the next rowset in a multi-rowset statement handle
  </DIV
><DIV
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></A
><H2
>说明</H2
>class <B
CLASS="classname"
>PDOStatement</B
> { <BR
></BR
>bool <B
CLASS="methodname"
>nextRowset</B
> ( void  )<BR
></BR
>}<P
>&#13;   Some database servers support stored procedures that return more than one
   rowset (also known as a result set).
   <A
HREF="function.pdostatement-nextrowset.html"
>PDOStatement-&#62;nextRowset()</A
> enables you to access the
   second and subsequent rowsets associated with a PDOStatement object. Each
   rowset can have a different set of columns from the preceding rowset.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN178037"
></A
><H2
>返回值</H2
><P
>&#13;   如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
  </P
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><DIV
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><A
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></A
><H2
>范例</H2
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><B
>例 1. Fetching multiple rowsets returned from a stored procedure</B
></P
><P
>&#13;     The following example shows how to call a stored procedure,
     MULTIPLE_RESULTS, that returns three rowsets. We use a do / while loop to
     loop over the <A
HREF="function.pdostatement-nextrowset.html"
>PDOStatement-&#62;nextRowset()</A
> method, which
     returns false and terminates the loop when no more rowsets can be returned.
    </P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$sql </font><font color="#007700">= </font><font color="#DD0000">'CALL multiple_rowsets()'</font><font color="#007700">;<br /></font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">$conn</font><font color="#007700">-&gt;</font><font color="#0000BB">query</font><font color="#007700">(</font><font color="#0000BB">$sql</font><font color="#007700">);<br /></font><font color="#0000BB">$i </font><font color="#007700">= </font><font color="#0000BB">1</font><font color="#007700">;<br />do {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$rowset </font><font color="#007700">= </font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">fetchAll</font><font color="#007700">(</font><font color="#0000BB">PDO</font><font color="#007700">::</font><font color="#0000BB">FETCH_NUM</font><font color="#007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;if (</font><font color="#0000BB">$rowset</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printResultSet</font><font color="#007700">(</font><font color="#0000BB">$rowset</font><font color="#007700">, </font><font color="#0000BB">$i</font><font color="#007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$i</font><font color="#007700">++;<br />} while (</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">nextRowset</font><font color="#007700">());<br /><br />function </font><font color="#0000BB">printResultSet</font><font color="#007700">(&amp;</font><font color="#0000BB">$rowset</font><font color="#007700">, </font><font color="#0000BB">$i</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;print </font><font color="#DD0000">"Result set $i:</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;foreach (</font><font color="#0000BB">$rowset </font><font color="#007700">as </font><font color="#0000BB">$row</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;foreach (</font><font color="#0000BB">$row </font><font color="#007700">as </font><font color="#0000BB">$col</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print </font><font color="#0000BB">$col </font><font color="#007700">. </font><font color="#DD0000">"\t"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;print </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>上例将输出：</P
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>Result set 1:
apple    red
banana   yellow

Result set 2:
orange   orange    150
banana   yellow    175

Result set 3:
lime     green
apple    red
banana   yellow</PRE
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>
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>参见</H2
><P
>&#13;   <P
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>PDOStatement-&#62;execute()</A
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>PDOStatement-&#62;getColumnMeta()</A
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