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36 lines
2.0 KiB
HTML
36 lines
2.0 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>取得结果集中字段的数目</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.mysql-num-fields" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mysql_num_fields</h1>
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<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_num_fields</span> — <span class="dc-title">取得结果集中字段的数目</span></p>
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</div>
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<div class="refsect1 unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-seealsz" id="refsect1-function.mysql-num-fields-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-unknown-seealsz">
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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>mysql_num_fields</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>mysql_num_fields()</strong></span>
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返回结果集中字段的数目。
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</p>
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<p class="para">
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参见
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<span class="function"><a href="mysql_select_db.html" class="function">mysql_select_db()</a></span>，<span class="function"><a href="mysql_query.html" class="function">mysql_query()</a></span>，<span class="function"><a href="mysql_fetch_field.html" class="function">mysql_fetch_field()</a></span> 和
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<span class="function"><a href="mysql_num_rows.html" class="function">mysql_num_rows()</a></span>。
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</p>
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<p class="para">
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为向下兼容仍然可以使用
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<span class="function"><strong>mysql_numfields()</strong></span>，但反对这样做。
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</p>
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</div>
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</div></div></div></body></html> |