<!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>Gets the number of rows in a result</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysqli-result.lengths.html">mysqli_result::$lengths</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.mysqli-driver.html">mysqli_driver</a></div> <div class="up"><a href="class.mysqli-result.html">mysqli_result</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="mysqli-result.num-rows" class="refentry"> <div class="refnamediv"> <h1 class="refname">mysqli_result::$num_rows</h1> <h1 class="refname">mysqli_num_rows</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">mysqli_result::$num_rows</span> -- <span class="refname">mysqli_num_rows</span> — <span class="dc-title">Gets the number of rows in a result</span></p> </div> <div class="refsect1 description" id="refsect1-mysqli-result.num-rows-description"> <h3 class="title">Description</h3> <p class="para">Object oriented style</p> <div class="fieldsynopsis"><span class="type">int</span> <var class="varname"><a href="mysqli-result.num-rows.html">$mysqli_result->num_rows</a></var>;</div> <p class="para">Procedural style</p> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>mysqli_num_rows</strong></span> ( <span class="methodparam"><span class="type"><a href="class.mysqli-result.html" class="type mysqli_result">mysqli_result</a></span> <code class="parameter">$result</code></span> )</div> <p class="para rdfs-comment"> Returns the number of rows in the result set. </p> <p class="para"> The behaviour of <span class="function"><strong>mysqli_num_rows()</strong></span> depends on whether buffered or unbuffered result sets are being used. For unbuffered result sets, <span class="function"><strong>mysqli_num_rows()</strong></span> will not return the correct number of rows until all the rows in the result have been retrieved. </p> </div> <div class="refsect1 parameters" id="refsect1-mysqli-result.num-rows-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter"> result</code></em></span><dd> <p class="para">Procedural style only: A result set identifier returned by <span class="function"><a href="mysqli.query.html" class="function">mysqli_query()</a></span>, <span class="function"><a href="mysqli.store-result.html" class="function">mysqli_store_result()</a></span> or <span class="function"><a href="mysqli.use-result.html" class="function">mysqli_use_result()</a></span>.</p></dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-mysqli-result.num-rows-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns number of rows in the result set. </p> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> If the number of rows is greater than <strong><code>PHP_INT_MAX</code></strong>, the number will be returned as a string. </p> </p></blockquote> </div> <div class="refsect1 examples" id="refsect1-mysqli-result.num-rows-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-1748"> <p><strong>Example #1 Object oriented style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$mysqli </span><span style="color: #007700">= new </span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">, </span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br />if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT Code, Name FROM Country ORDER BY Name"</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #FF8000">/* determine number of rows result set */<br /> </span><span style="color: #0000BB">$row_cnt </span><span style="color: #007700">= </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">num_rows</span><span style="color: #007700">;<br /><br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Result set has %d rows.\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row_cnt</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* close result set */<br /> </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="example" id="example-1749"> <p><strong>Example #2 Procedural style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">, </span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br />if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT Code, Name FROM Country ORDER BY Name"</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #FF8000">/* determine number of rows result set */<br /> </span><span style="color: #0000BB">$row_cnt </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Result set has %d rows.\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row_cnt</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* close result set */<br /> </span><span style="color: #0000BB">mysqli_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">mysqli_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above examples will output:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> Result set has 239 rows. </pre></div> </div> </div> </div> <div class="refsect1 seealso" id="refsect1-mysqli-result.num-rows-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="mysqli.affected-rows.html" class="function" rel="rdfs-seeAlso">mysqli_affected_rows()</a> - Gets the number of affected rows in a previous MySQL operation</span></li> <li class="member"> <span class="function"><a href="mysqli.store-result.html" class="function" rel="rdfs-seeAlso">mysqli_store_result()</a> - Transfers a result set from the last query</span></li> <li class="member"> <span class="function"><a href="mysqli.use-result.html" class="function" rel="rdfs-seeAlso">mysqli_use_result()</a> - Initiate a result set retrieval</span></li> <li class="member"> <span class="function"><a href="mysqli.query.html" class="function" rel="rdfs-seeAlso">mysqli_query()</a> - Performs a query on the database</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysqli-result.lengths.html">mysqli_result::$lengths</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.mysqli-driver.html">mysqli_driver</a></div> <div class="up"><a href="class.mysqli-result.html">mysqli_result</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>