mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-18 22:06:57 +08:00
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">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
|
|
<title>Returns the number of rows in a buffered result set</title>
|
|
</head>
|
|
<body class="docs"><div id="layout">
|
|
<div id="layout-content"><div id="function.sqlite-num-rows" class="refentry">
|
|
<div class="refnamediv">
|
|
<h1 class="refname">sqlite_num_rows</h1>
|
|
<h1 class="refname">SQLiteResult::numRows</h1>
|
|
<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>
|
|
|
|
</div>
|
|
|
|
<div class="refsect1 description" id="refsect1-function.sqlite-num-rows-description">
|
|
<h3 class="title">说明</h3>
|
|
<div class="methodsynopsis dc-description">
|
|
<span class="methodname"><strong>sqlite_num_rows</strong></span>
|
|
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
|
|
) : <span class="type">int</span></div>
|
|
|
|
<p class="para rdfs-comment">面向对象风格 (method):</p>
|
|
<div class="methodsynopsis dc-description">
|
|
<span class="methodname"><strong>SQLiteResult::numRows</strong></span>
|
|
( <span class="methodparam">void</span>
|
|
) : <span class="type">int</span></div>
|
|
|
|
<p class="para rdfs-comment">
|
|
Returns the number of rows in the buffered <code class="parameter">result</code>
|
|
set.
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 parameters" id="refsect1-function.sqlite-num-rows-parameters">
|
|
<h3 class="title">参数</h3>
|
|
<p class="para">
|
|
<dl>
|
|
|
|
|
|
<dt>
|
|
<code class="parameter">result</code></dt>
|
|
|
|
<dd>
|
|
|
|
<p class="para">
|
|
The SQLite result resource. This parameter is not required when using
|
|
the object-oriented method.
|
|
</p>
|
|
<blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">此函数不能用于未缓冲的结果句柄。</p></p></blockquote>
|
|
</dd>
|
|
|
|
|
|
</dl>
|
|
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 returnvalues" id="refsect1-function.sqlite-num-rows-returnvalues">
|
|
<h3 class="title">返回值</h3>
|
|
<p class="para">
|
|
Returns the number of rows, as an integer.
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 examples" id="refsect1-function.sqlite-num-rows-examples">
|
|
<h3 class="title">范例</h3>
|
|
<p class="para">
|
|
<div class="example" id="example-2543">
|
|
<p><strong>Example #1 Procedural example</strong></p>
|
|
<div class="example-contents">
|
|
<div class="phpcode"><pre><span style="color: #000000">
|
|
<span style="color: #0000BB"><?php<br />$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">$rows</span><span style="color: #DD0000">"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span>
|
|
</span>
|
|
</pre></div>
|
|
</div>
|
|
|
|
</div>
|
|
</p>
|
|
<p class="para">
|
|
<div class="example" id="example-2544">
|
|
<p><strong>Example #2 Object-oriented example</strong></p>
|
|
<div class="example-contents">
|
|
<div class="phpcode"><pre><span style="color: #000000">
|
|
<span style="color: #0000BB"><?php<br />$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>
|
|
</span>
|
|
</pre></div>
|
|
</div>
|
|
|
|
</div>
|
|
</p>
|
|
</div>
|
|
|
|
|
|
<div class="refsect1 seealso" id="refsect1-function.sqlite-num-rows-seealso">
|
|
<h3 class="title">参见</h3>
|
|
<p class="para">
|
|
<ul class="simplelist">
|
|
<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
|
|
recent SQL statement</span></li>
|
|
<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>
|
|
<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>
|
|
</ul>
|
|
</p>
|
|
</div>
|
|
|
|
</div></div></div></body></html> |