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37 lines
2.5 KiB
HTML
37 lines
2.5 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>返回上一个对象的 oid</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.pg-last-oid" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">pg_last_oid</h1>
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<p class="verinfo">(PHP 4 >= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">pg_last_oid</span> — <span class="dc-title">返回上一个对象的 oid</span></p>
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</div>
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<div class="refsect1 unknown-seealsp" id="refsect1-function.pg-last-oid-unknown-seealsp">
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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>pg_last_oid</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
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) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>pg_last_oid()</strong></span> 在上一条通过 <span class="function"><a href="pg_query.html" class="function">pg_query()</a></span> 发送的命令是 SQL INSERT 的情况下用来取得分配给所插入记录的 <var class="varname"><var class="varname">oid</var></var>。如果存在有效的 <var class="varname"><var class="varname">oid</var></var> 则返回一个正整数，如果出错或者上一条通过 <span class="function"><a href="pg_query.html" class="function">pg_query()</a></span> 发送的命令不是 INSERT 或者该 INSERT 失败则返回 <strong><code>FALSE</code></strong>。
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</p>
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<p class="para">
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从 PostgreSQL 7.2 版开始 OID 字段成为可选项。如果一个表中没有定义 OID 字段，程序员必须用 <span class="function"><a href="pg_result_status.html" class="function">pg_result_status()</a></span> 函数来检查记录是否被成功插入。
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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本函数以前的名字为 <em>pg_getlastoid()</em>。
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</p>
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</p></blockquote>
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<p class="para">
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参见 <span class="function"><a href="pg_query.html" class="function">pg_query()</a></span> 和 <span class="function"><a href="pg_result_status.html" class="function">pg_result_status()</a></span>。
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</p>
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</div>
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</div></div></div></body></html> |