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93 lines
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HTML
93 lines
5.1 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>Return the number of columns in the result set</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-num-cols" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_num_cols</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.0)</p><p class="refpurpose"><span class="refname">cubrid_num_cols</span> — <span class="dc-title">Return the number of columns in the result set</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-num-cols-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_num_cols</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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The <span class="function"><strong>cubrid_num_cols()</strong></span> function is used to get the
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number of columns from the query result. It can only be used when the
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query executed is a select statement.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-num-cols-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">result</code></dt>
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<dd>
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<p class="para">Result.</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-num-cols-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Number of columns, 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>, if SQL statement is not SELECT.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.cubrid-num-cols-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1137">
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<p><strong>Example #1 <span class="function"><strong>cubrid_num_cols()</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">"localhost"</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 /><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 code"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row_num </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$col_num </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_num_cols</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Row Num: %d\nColumn Num: %d\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row_num</span><span style="color: #007700">, </span><span style="color: #0000BB">$col_num</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 /></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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Row Num: 6
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Column Num: 2
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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-num-cols-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_execute.html" class="function" rel="rdfs-seeAlso">cubrid_execute()</a> - Execute a prepared SQL statement</span></li>
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<li class="member"><span class="function"><a href="cubrid_num_rows.html" class="function" rel="rdfs-seeAlso">cubrid_num_rows()</a> - Get the number of rows in the result set</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> |