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89 lines
5.1 KiB
HTML
89 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>Get number of rows in result</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.fbsql-num-rows" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">fbsql_num_rows</h1>
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<p class="verinfo">(PHP 4 >= 4.0.6, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">fbsql_num_rows</span> — <span class="dc-title">Get number of rows in result</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.fbsql-num-rows-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>fbsql_num_rows</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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Gets the number of rows in the given <code class="parameter">result</code> set.
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</p>
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<p class="para">
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This function is only valid for SELECT statements. To retrieve the number
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of rows returned from a INSERT, UPDATE or DELETE query, use
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<span class="function"><a href="fbsql_affected_rows.html" class="function">fbsql_affected_rows()</a></span>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.fbsql-num-rows-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">
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result</code></dt>
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<dd>
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<p class="para">由 <span class="function"><a href="fbsql_query.html" class="function">fbsql_query()</a></span>
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或 <span class="function"><a href="fbsql_db_query.html" class="function">fbsql_db_query()</a></span> 返回的结果标识符。</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.fbsql-num-rows-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns the number of rows returned by the last SELECT statement.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.fbsql-num-rows-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-1222">
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<p><strong>Example #1 <span class="function"><strong>fbsql_num_rows()</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 /><br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">fbsql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"username"</span><span style="color: #007700">, </span><span style="color: #DD0000">"password"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fbsql_select_db</span><span style="color: #007700">(</span><span style="color: #DD0000">"database"</span><span style="color: #007700">, </span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">fbsql_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT * FROM table1;"</span><span style="color: #007700">, </span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$num_rows </span><span style="color: #007700">= </span><span style="color: #0000BB">fbsql_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #DD0000">"</span><span style="color: #0000BB">$num_rows</span><span style="color: #DD0000"> Rows\n"</span><span style="color: #007700">;<br /><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.fbsql-num-rows-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="fbsql_affected_rows.html" class="function" rel="rdfs-seeAlso">fbsql_affected_rows()</a> - Get number of affected rows in previous FrontBase operation</span></li>
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<li class="member"><span class="function"><a href="fbsql_connect.html" class="function" rel="rdfs-seeAlso">fbsql_connect()</a> - Open a connection to a FrontBase Server</span></li>
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<li class="member"><span class="function"><a href="fbsql_select_db.html" class="function" rel="rdfs-seeAlso">fbsql_select_db()</a> - Select a FrontBase database</span></li>
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<li class="member"><span class="function"><a href="fbsql_query.html" class="function" rel="rdfs-seeAlso">fbsql_query()</a> - Send a FrontBase query</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> |