pdostatement.nextrowset.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Advances to the next rowset in a multi-rowset statement handle</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="pdostatement.getcolumnmeta.html">PDOStatement->getColumnMeta</a></div> <div class="next" style="text-align: right; float: right;"><a href="pdostatement.rowcount.html">PDOStatement->rowCount</a></div> <div class="up"><a href="class.pdostatement.html">PDOStatement</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="pdostatement.nextrowset" class="refentry"> <div class="refnamediv"> <h1 class="refname">PDOStatement->nextRowset</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">PDOStatement->nextRowset</span> — <span class="dc-title"> Advances to the next rowset in a multi-rowset statement handle </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>PDOStatement::nextRowset</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> Some database servers support stored procedures that return more than one rowset (also known as a result set). <b>PDOStatement::nextRowset()</b> 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 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Fetching multiple rowsets returned from a stored procedure</b></p> <div class="example-contents"><p> The following example shows how to call a stored procedure, MULTIPLE_ROWSETS, that returns three rowsets. We use a do / while loop to loop over the <b>PDOStatement::nextRowset()</b> method, which returns false and terminates the loop when no more rowsets can be returned. </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$sql </span><span style="color: #007700">= </span><span style="color: #DD0000">'CALL multiple_rowsets()'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">$conn</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$sql</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">1</span><span style="color: #007700">;<br />do {<br /> </span><span style="color: #0000BB">$rowset </span><span style="color: #007700">= </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">fetch</span><span style="color: #007700">(</span><span style="color: #0000BB">PDO</span><span style="color: #007700">::</span><span style="color: #0000BB">FETCH_NUM</span><span style="color: #007700">);<br /> if (</span><span style="color: #0000BB">$rowset</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printResultSet</span><span style="color: #007700">(</span><span style="color: #0000BB">$rowset</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">);<br /> }<br /> </span><span style="color: #0000BB">$i</span><span style="color: #007700">++;<br />} while (</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">nextRowset</span><span style="color: #007700">());<br /><br />function </span><span style="color: #0000BB">printResultSet</span><span style="color: #007700">(&</span><span style="color: #0000BB">$rowset</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">) {<br /> print </span><span style="color: #DD0000">"Result set $i:\n"</span><span style="color: #007700">;<br /> foreach (</span><span style="color: #0000BB">$rowset </span><span style="color: #007700">as </span><span style="color: #0000BB">$row</span><span style="color: #007700">) {<br /> foreach (</span><span style="color: #0000BB">$row </span><span style="color: #007700">as </span><span style="color: #0000BB">$col</span><span style="color: #007700">) {<br /> print </span><span style="color: #0000BB">$col </span><span style="color: #007700">. </span><span style="color: #DD0000">"\t"</span><span style="color: #007700">;<br /> }<br /> print </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> }<br /> print </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>Result set 1:apple redbanana yellowResult set 2:orange orange 150banana yellow 175Result set 3:lime greenapple redbanana yellow</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="pdostatement.columncount.html" class="function" rel="rdfs-seeAlso">PDOStatement::columnCount()</a></li> <li class="member"><a href="pdostatement.execute.html" class="function" rel="rdfs-seeAlso">PDOStatement::execute()</a></li> <li class="member"><a href="pdostatement.getcolumnmeta.html" class="function" rel="rdfs-seeAlso">PDOStatement::getColumnMeta()</a></li> <li class="member"><a href="pdo.query.html" class="function" rel="rdfs-seeAlso">PDO::query()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="pdostatement.getcolumnmeta.html">PDOStatement->getColumnMeta</a></div> <div class="next" style="text-align: right; float: right;"><a href="pdostatement.rowcount.html">PDOStatement->rowCount</a></div> <div class="up"><a href="class.pdostatement.html">PDOStatement</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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