function.sqlite-num-rows.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Returns the number of rows in a buffered result set</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.sqlite-num-fields.html">sqlite_num_fields</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sqlite-open.html">sqlite_open</a></div> <div class="up"><a href="ref.sqlite.html">SQLite Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><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, PECL sqlite:1.0-1.0.3)</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"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><b><b>sqlite_num_rows</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$result</tt></span> )</div> <p class="para rdfs-comment">Object oriented style (method):</p> <div class="classsynopsis"> <div class="ooclass"><b class="classname">SQLiteResult</b></div> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><b><b>numRows</b></b></span> ( <span class="methodparam">void</span> )</div> </div> <p class="para"> Returns the number of rows in the buffered <i><tt class="parameter">result</tt></i> set. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">result</tt></i></span> <dd> <p class="para"> The SQLite result resource. This parameter is not required when using the object-oriented method. </p> <blockquote><p><b class="note">Note</b>: This function cannot be used with unbuffered result handles.<br /></p></blockquote> </dd> </dt> </dl> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Procedural example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$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: $rows"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> <p class="para"> <div class="example"> <p><b>Example #2 Object-oriented example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$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: $rows"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.sqlite-changes.html" class="function" rel="rdfs-seeAlso">sqlite_changes()</a></li> <li class="member"><a href="function.sqlite-query.html" class="function" rel="rdfs-seeAlso">sqlite_query()</a></li> <li class="member"><a href="function.sqlite-num-fields.html" class="function" rel="rdfs-seeAlso">sqlite_num_fields()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.sqlite-num-fields.html">sqlite_num_fields</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sqlite-open.html">sqlite_open</a></div> <div class="up"><a href="ref.sqlite.html">SQLite Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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