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143 lines
6.5 KiB
HTML
143 lines
6.5 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>将关联的数组值转换为适合 SQL 语句的格式。</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-convert" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">pg_convert</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">pg_convert</span> — <span class="dc-title">
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将关联的数组值转换为适合 SQL 语句的格式。
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.pg-convert-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>pg_convert</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$table_name</code></span>
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, <span class="methodparam"><span class="type">array</span> <code class="parameter">$assoc_array</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code><span class="initializer"> = 0</span></span>
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] ) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>pg_convert()</strong></span> 检查 <em>assoc_array</em>
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中的值并将其转换为为适用于 SQL 语句的值。<span class="function"><strong>pg_convert()</strong></span>
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的前提条件是现有的表 <em>table_name</em>
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中具有的列至少有 <em>assoc_array</em>
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中的单元那么多。<em>table_name</em>
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中的字段名以及字段值必须和 <em>assoc_array</em>
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中的键名及值匹配。如果成功则返回一个包括转换后的值的数组，否则返回 <strong><code>FALSE</code></strong>。
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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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If there are boolean fields in <code class="parameter">table_name</code> don't
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use the constant <strong><code>TRUE</code></strong> in <code class="parameter">assoc_array</code>. It will be
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converted to the string 'TRUE' which is no valid entry for boolean fields
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in PostgreSQL. Use one of t, true, 1, y, yes instead.
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</p>
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</p></blockquote>
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<div class="warning"><strong class="warning">Warning</strong><p class="simpara">此函数是<em class="emphasis">实验性</em>的。此函数的表象，包括名称及其相关文档都可能在未来的
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PHP 发布版本中未通知就被修改。使用本函数风险自担 。</p></div>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.pg-convert-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">connection</code></dt>
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<dd>
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<p class="para">
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PostgreSQL database connection resource.
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</p>
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</dd>
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<dt>
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<code class="parameter">table_name</code></dt>
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<dd>
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<p class="para">
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Name of the table against which to convert types.
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</p>
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</dd>
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<dt>
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<code class="parameter">assoc_array</code></dt>
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<dd>
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<p class="para">
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Data to be converted.
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</p>
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</dd>
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<dt>
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<code class="parameter">options</code></dt>
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<dd>
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<p class="para">
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Any number of <strong><code>PGSQL_CONV_IGNORE_DEFAULT</code></strong>,
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<strong><code>PGSQL_CONV_FORCE_NULL</code></strong> or
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<strong><code>PGSQL_CONV_IGNORE_NOT_NULL</code></strong>, combined.
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</p>
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</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.pg-convert-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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An <span class="type"><a href="language.types.array.html" class="type array">array</a></span> of converted values, or <strong><code>FALSE</code></strong> on error.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.pg-convert-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-2479">
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<p><strong>Example #1 <span class="function"><strong>pg_convert()</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 /> $dbconn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbname=foo'</span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">$tmp </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">'author' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'Joe Thackery'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'year' </span><span style="color: #007700">=> </span><span style="color: #0000BB">2005</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'title' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'My Life, by Joe Thackery'<br /> </span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">$vals </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_convert</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbconn</span><span style="color: #007700">, </span><span style="color: #DD0000">'authors'</span><span style="color: #007700">, </span><span style="color: #0000BB">$tmp</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>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.pg-convert-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="pg_meta_data.html" class="function" rel="rdfs-seeAlso">pg_meta_data()</a> - 获得表的元数据</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> |