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<h1 class="refname">mysql_close</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_close</span> — <span class="dc-title">Close MySQL connection</span></p>
</div>
<div id="function.mysql-close-refsynopsisdiv">
<div class="warning"><strong class="warning">Warning</strong>
<p class="para">This extension is deprecated as of PHP 5.5.0, and will be removed in the future.
Instead, the <a href="book.mysqli.html" class="link">MySQLi</a> or <a href="ref.pdo-mysql.html" class="link">PDO_MySQL</a> extension should be used.
See also <a href="mysqlinfo.api.choosing.html" class="link">MySQL: choosing an API</a> guide and
<a href="faq.databases.html#faq.databases.mysql.deprecated" class="link">related FAQ</a> for more information.
Alternatives to this function include:</p>
<ul class="simplelist">
<li class="member"> <span class="function"><a href="mysqli.close.html" class="function">mysqli_close()</a></span></li>
<li class="member">PDO: Assign the value of <strong><code>NULL</code></strong> to the PDO object</li>
</ul>
</div>
</div>
<div class="refsect1 description" id="refsect1-function.mysql-close-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>mysql_close</strong></span>
([ <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link_identifier</code><span class="initializer"> = NULL</span></span>
] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>mysql_close()</strong></span> closes the non-persistent connection to
the MySQL server that's associated with the specified link identifier. If
<em><code class="parameter">link_identifier</code></em> isn't specified, the last opened
link is used.
</p>
<p class="para">
Using <span class="function"><strong>mysql_close()</strong></span> isn't usually necessary,
as non-persistent open links are automatically closed at the end
of the script's execution. See also
<a href="language.types.resource.html#language.types.resource.self-destruct" class="link">freeing
resources</a>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.mysql-close-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">
link_identifier</code></em></span><dd>
<p class="para">The MySQL connection. If the
link identifier is not specified, the last link opened by
<span class="function"><a href="function.mysql-connect.html" class="function">mysql_connect()</a></span> is assumed. If no connection is found or
established, an <strong><code>E_WARNING</code></strong> level error is
generated.</p></dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.mysql-close-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.mysql-close-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-1567">
<p><strong>Example #1 <span class="function"><strong>mysql_close()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_user'</span><span style="color: #007700">, </span><span style="color: #DD0000">'mysql_password'</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$link</span><span style="color: #007700">) {<br /> die(</span><span style="color: #DD0000">'Could not connect: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">mysql_error</span><span style="color: #007700">());<br />}<br />echo </span><span style="color: #DD0000">'Connected successfully'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">mysql_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Connected successfully
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.mysql-close-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
<span class="function"><strong>mysql_close()</strong></span> will not close persistent links
created by <span class="function"><a href="function.mysql-pconnect.html" class="function">mysql_pconnect()</a></span>.
</p>
</p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-function.mysql-close-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.mysql-connect.html" class="function" rel="rdfs-seeAlso">mysql_connect()</a> - Open a connection to a MySQL Server</span></li>
<li class="member"> <span class="function"><a href="function.mysql-free-result.html" class="function" rel="rdfs-seeAlso">mysql_free_result()</a> - Free result memory</span></li>
</ul>
</p>
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