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<title>Setup</title>
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<h2 class="title">Setup</h2>
<p class="para">
The plugin is implemented as a PHP extension. See also the
<a href="mysqlnd-qc.installation.html" class="link">installation instructions</a> to
install the
<a href="http://pecl.php.net/package/mysqlnd_qc" class="link external">» PECL/mysqlnd_qc</a> extension.
</p>
<p class="para">
Compile or configure the PHP MySQL extension (<a href="ref.mysqli.html" class="link">mysqli</a>,
<a href="ref.pdo-mysql.html" class="link">PDO_MYSQL</a>,
<a href="ref.mysql.html" class="link">mysql</a>) that you plan to use with support
for the <a href="book.mysqlnd.html" class="link">mysqlnd</a> library. PECL/mysqlnd_qc
is a plugin for the mysqlnd library. To use the plugin with any of the existing PHP
MySQL extensions (APIs), the extension has to use the mysqlnd library.
</p>
<p class="para">
Then, load the extension into PHP and activate the plugin in the PHP configuration
file using the PHP configuration directive named
<a href="mysqlnd-qc.configuration.html#ini.mysqlnd-qc.enable-qc" class="link">mysqlnd_qc.enable_qc</a>.
</p>
<p class="para">
<div class="example" id="example-1845">
<p><strong>Example #1 Enabling the plugin (php.ini)</strong></p>
<div class="example-contents">
<div class="inicode"><pre class="inicode">mysqlnd_qc.enable_qc=1</pre>
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