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100 lines
14 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Roll back a transaction</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.cubrid-rollback" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_rollback</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.0)</p><p class="refpurpose"><span class="refname">cubrid_rollback</span> — <span class="dc-title">Roll back a transaction</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-rollback-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>cubrid_rollback</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn_identifier</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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The <span class="function"><strong>cubrid_rollback()</strong></span> function executes rollback on the
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transaction pointed by <code class="parameter">conn_identifier</code>, currently in
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progress.
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</p>
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<p class="para">
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Connection to server is closed after calling
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<span class="function"><strong>cubrid_rollback()</strong></span>. Connection handle, however, is
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still valid.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-rollback-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">conn_identifier</code></dt>
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<dd>
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<p class="para">Connection identifier.</p></dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.cubrid-rollback-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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<strong><code>TRUE</code></strong>, when process is successful.
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</p>
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<p class="para">
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<strong><code>FALSE</code></strong>, when process is unsuccessful.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.cubrid-rollback-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1144">
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<p><strong>Example #1 <span class="function"><strong>cubrid_rollback()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"127.0.0.1"</span><span style="color: #007700">, </span><span style="color: #0000BB">33000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">, </span><span style="color: #DD0000">"dba"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_set_autocommit</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">,</span><span style="color: #0000BB">false</span><span style="color: #007700">);<br /><br />@</span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"DROP TABLE publishers"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$sql </span><span style="color: #007700">= <<<EOD<br /></span><span style="color: #DD0000">CREATE TABLE publishers(<br />pub_id CHAR(3), <br />pub_name VARCHAR(20), <br />city VARCHAR(15), <br />state CHAR(2), <br />country VARCHAR(15)<br />)<br /></span><span style="color: #007700">EOD;<br /><br />if (!</span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #0000BB">$sql</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Error facility: %d\nError code: %d\nError msg: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">cubrid_error_code_facility</span><span style="color: #007700">(), </span><span style="color: #0000BB">cubrid_error_code</span><span style="color: #007700">(), </span><span style="color: #0000BB">cubrid_error_msg</span><span style="color: #007700">());<br /><br /> </span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /> exit;<br />}<br /><br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"INSERT INTO publishers VALUES(?, ?, ?, ?, ?)"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$id_list </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"P01"</span><span style="color: #007700">, </span><span style="color: #DD0000">"P02"</span><span style="color: #007700">, </span><span style="color: #DD0000">"P03"</span><span style="color: #007700">, </span><span style="color: #DD0000">"P04"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$name_list </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"Abatis Publishers"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Core Dump Books"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Schadenfreude Press"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Tenterhooks Press"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$city_list </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"New York"</span><span style="color: #007700">, </span><span style="color: #DD0000">"San Francisco"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Hamburg"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Berkeley"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$state_list </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"NY"</span><span style="color: #007700">, </span><span style="color: #DD0000">"CA"</span><span style="color: #007700">, </span><span style="color: #0000BB">NULL</span><span style="color: #007700">, </span><span style="color: #DD0000">"CA"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$country_list </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"USA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"USA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Germany"</span><span style="color: #007700">, </span><span style="color: #DD0000">"USA"</span><span style="color: #007700">);<br /><br />for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">$size </span><span style="color: #007700">= </span><span style="color: #0000BB">count</span><span style="color: #007700">(</span><span style="color: #0000BB">$id_list</span><span style="color: #007700">); </span><span style="color: #0000BB">$i </span><span style="color: #007700">< </span><span style="color: #0000BB">$size</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> </span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">$id_list</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">]);<br /> </span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">$name_list</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">]);<br /> </span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">, </span><span style="color: #0000BB">$city_list</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">]);<br /> </span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">4</span><span style="color: #007700">, </span><span style="color: #0000BB">$state_list</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">]);<br /> </span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #0000BB">$country_list</span><span style="color: #007700">[</span><span style="color: #0000BB">$i</span><span style="color: #007700">]);<br /><br /> if (!(</span><span style="color: #0000BB">$ret </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">))) {<br /> break;<br /> }<br />}<br /><br />if (!</span><span style="color: #0000BB">$ret</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">cubrid_rollback</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br />} else {<br /> </span><span style="color: #0000BB">cubrid_commit</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT * FROM publishers"</span><span style="color: #007700">);<br /> while (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-3s %-20s %-15s %-3s %-15s\n"</span><span style="color: #007700">, <br /> </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"pub_id"</span><span style="color: #007700">], </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"pub_name"</span><span style="color: #007700">], </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"city"</span><span style="color: #007700">], </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"state"</span><span style="color: #007700">], </span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">"country"</span><span style="color: #007700">]);<br /> }<br />}<br /><br /></span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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P01 Abatis Publishers New York NY USA
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P02 Core Dump Books San Francisco CA USA
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P03 Schadenfreude Press Hamburg Germany
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P04 Tenterhooks Press Berkeley CA USA
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</pre></div>
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</div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.cubrid-rollback-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="cubrid_commit.html" class="function" rel="rdfs-seeAlso">cubrid_commit()</a> - Commit a transaction</span></li>
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<li class="member"><span class="function"><a href="cubrid_disconnect.html" class="function" rel="rdfs-seeAlso">cubrid_disconnect()</a> - Close a database connection</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |