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110 lines
6.1 KiB
HTML
110 lines
6.1 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>Returns the number of rows in a buffered 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.sqlite-num-rows" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">sqlite_num_rows</h1>
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<h1 class="refname">SQLiteResult::numRows</h1>
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<p class="verinfo">(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)</p><p class="refpurpose"><span class="refname">sqlite_num_rows</span> -- <span class="refname">SQLiteResult::numRows</span> — <span class="dc-title">Returns the number of rows in a buffered result set</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.sqlite-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>sqlite_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">面向对象风格 (method):</p>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>SQLiteResult::numRows</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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Returns the number of rows in the buffered <code class="parameter">result</code>
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set.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.sqlite-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">result</code></dt>
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<dd>
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<p class="para">
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The SQLite result resource. This parameter is not required when using
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the object-oriented method.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">此函数不能用于未缓冲的结果句柄。</p></p></blockquote>
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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.sqlite-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, as an integer.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.sqlite-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-2543">
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<p><strong>Example #1 Procedural 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 />$db </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_open</span><span style="color: #007700">(</span><span style="color: #DD0000">'mysqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT * FROM mytable WHERE name='John Doe'"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$rows </span><span style="color: #007700">= </span><span style="color: #0000BB">sqlite_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #DD0000">"Number of rows: </span><span style="color: #0000BB">$rows</span><span style="color: #DD0000">"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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<p class="para">
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<div class="example" id="example-2544">
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<p><strong>Example #2 Object-oriented example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$db </span><span style="color: #007700">= new </span><span style="color: #0000BB">SQLiteDatabase</span><span style="color: #007700">(</span><span style="color: #DD0000">'mysqlitedb'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">$db</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT * FROM mytable WHERE name='John Doe'"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$rows </span><span style="color: #007700">= </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">numRows</span><span style="color: #007700">();<br /><br />echo </span><span style="color: #DD0000">"Number of rows: </span><span style="color: #0000BB">$rows</span><span style="color: #DD0000">"</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.sqlite-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="sqlite_changes.html" class="function" rel="rdfs-seeAlso">sqlite_changes()</a> - Returns the number of rows that were changed by the most
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recent SQL statement</span></li>
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<li class="member"><span class="function"><a href="sqlite_query.html" class="function" rel="rdfs-seeAlso">sqlite_query()</a> - Executes a query against a given database and returns a result handle</span></li>
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<li class="member"><span class="function"><a href="sqlite_num_fields.html" class="function" rel="rdfs-seeAlso">sqlite_num_fields()</a> - Returns the number of fields in a 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> |