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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>新建一个大型对象</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.pg-lo-create" class="refentry">
<div class="refnamediv">
<h1 class="refname">pg_lo_create</h1>
<p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">pg_lo_create</span> &mdash; <span class="dc-title">新建一个大型对象</span></p>
</div>
<div class="refsect1 unknown-unknown-unknown-seealsr" id="refsect1-function.pg-lo-create-unknown-unknown-unknown-seealsr">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>pg_lo_create</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
) : <span class="type">int</span></div>
<p class="para rdfs-comment">
<span class="function"><strong>pg_lo_create()</strong></span> 新建一个大型对象并返回该大型对象的 <var class="varname"><var class="varname">oid</var></var>。<code class="parameter">connection</code> 指定了由 <span class="function"><a href="pg_connect.html" class="function">pg_connect()</a></span> 或 <span class="function"><a href="pg_pconnect.html" class="function">pg_pconnect()</a></span> 打开的有效的数据库连接号。不支持 PostgreSQL 访问模式 INV_READ，INV_WRITE 和 INV_ARCHIVE，该对象总是以读写方式访问。INV_ARCHIVE 已经从 PostgreSQL 中删除了（6.3 及以上版本）。本函数返回大型对象的 oid，如果出错则返回 <strong><code>FALSE</code></strong>。
</p>
<p class="para">
要使用大型对象（lo）接口，需要将其放置在事务块中。
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
本函数以前的名字为 <em>pg_locreate()</em>。
</p>
</p></blockquote>
</div>
</div></div></div></body></html>