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<h1 class="refname">mysqli::close</h1>
<h1 class="refname">mysqli_close</h1>
<p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mysqli::close</span> -- <span class="refname">mysqli_close</span> — <span class="dc-title">Closes a previously opened database connection</span></p>
</div>
<div class="refsect1 description" id="refsect1-mysqli.close-description">
<h3 class="title">Description</h3>
<p class="para">Object oriented style</p>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>mysqli::close</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">Procedural style</p>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>mysqli_close</strong></span>
( <span class="methodparam"><span class="type"><a href="class.mysqli.html" class="type mysqli">mysqli</a></span> <code class="parameter">$link</code></span>
)</div>
<p class="para rdfs-comment">
Closes a previously opened database connection.
</p>
<p class="para">
Open non-persistent MySQL connections and result sets are automatically destroyed when a
PHP script finishes its execution. So, while explicitly closing open
connections and freeing result sets is optional, doing so is recommended.
This will immediately return resources to PHP and MySQL, which can
improve performance. For related information, see
<a href="language.types.resource.html#language.types.resource.self-destruct" class="link">freeing resources</a></p>
</div>
<div class="refsect1 parameters" id="refsect1-mysqli.close-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">
link</code></dt>
<dd>
<p class="para">Procedural style only: A link identifier
returned by <span class="function"><a href="function.mysqli-connect.html" class="function">mysqli_connect()</a></span> or <span class="function"><a href="mysqli.init.html" class="function">mysqli_init()</a></span>
</p></dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-mysqli.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-mysqli.close-examples">
<h3 class="title">Examples</h3>
<p class="para">
See <span class="function"><a href="function.mysqli-connect.html" class="function">mysqli_connect()</a></span>.
</p>
</div>
<div class="refsect1 notes" id="refsect1-mysqli.close-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
<span class="function"><strong>mysqli_close()</strong></span> will not close persistent connections.
For additional details, see the manual page on
<a href="features.persistent-connections.html" class="link">persistent connections</a>.
</p>
</p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-mysqli.close-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="methodname"><a href="mysqli.construct.html" class="methodname" rel="rdfs-seeAlso">mysqli::__construct()</a> - Open a new connection to the MySQL server</span></li>
<li class="member"><span class="function"><a href="mysqli.init.html" class="function" rel="rdfs-seeAlso">mysqli_init()</a> - Initializes MySQLi and returns a resource for use with mysqli_real_connect()</span></li>
<li class="member"><span class="function"><a href="mysqli.real-connect.html" class="function" rel="rdfs-seeAlso">mysqli_real_connect()</a> - Opens a connection to a mysql server</span></li>
<li class="member"><span class="function"><a href="mysqli-result.free.html" class="function" rel="rdfs-seeAlso">mysqli_free_result()</a> - Frees the memory associated with a result</span></li>
</ul>
</p>
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