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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Roll back a transaction</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.ingres-rollback" class="refentry">
<div class="refnamediv">
<h1 class="refname">ingres_rollback</h1>
<p class="verinfo">(PHP 4 &gt;= 4.0.2, PHP 5 &lt; 5.1.0, PECL ingres &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">ingres_rollback</span> &mdash; <span class="dc-title">Roll back a transaction</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.ingres-rollback-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>ingres_rollback</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
) : <span class="type">bool</span></div>
<p class="para rdfs-comment">
<span class="function"><strong>ingres_rollback()</strong></span> rolls back the currently
open transaction, actually cancelling all changes made to the
database during the transaction.
</p>
<p class="para">
This closes the transaction. A new transaction can be opened by sending a
query with <span class="function"><a href="ingres_query.html" class="function">ingres_query()</a></span>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.ingres-rollback-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">link</code></dt>
<dd>
<p class="para">
The connection link identifier
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.ingres-rollback-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.ingres-rollback-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="ingres_query.html" class="function" rel="rdfs-seeAlso">ingres_query()</a> - Send an SQL query to Ingres</span></li>
<li class="member"><span class="function"><a href="ingres_commit.html" class="function" rel="rdfs-seeAlso">ingres_commit()</a> - Commit a transaction</span></li>
<li class="member"><span class="function"><a href="ingres_autocommit.html" class="function" rel="rdfs-seeAlso">ingres_autocommit()</a> - Switch autocommit on or off</span></li>
</ul>
</p>
</div>
</div></div></div></body></html>