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<h2 class="title">Requirements</h2>
<p class="para">
PHP: this extension requires PHP 5.4+, version PHP 5.4.4 or never. The required
PHP extensions are <a href="ref.pcre.html" class="link">PCRE</a> (enabled by default), and
the <a href="book.memcached.html" class="link">memcached</a> extension version 2.0.x.
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<p class="para">
The <em>mysqlnd_memcache</em> Memcache
plugin supports all PHP applications and all available PHP MySQL extensions
(<a href="ref.mysqli.html" class="link">mysqli</a>,
<a href="ref.mysql.html" class="link">mysql</a>,
<a href="ref.pdo-mysql.html" class="link">PDO_MYSQL</a>).
The PHP MySQL extension must be configured with
<a href="book.mysqlnd.html" class="link">mysqlnd</a> support.
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<p class="para">
For accessing <em>InnoDB</em> tables, this PHP extension requires
<em>MySQL Server 5.6.6</em> or newer with the InnoDB Memcache
Daemon Plugin enabled.
</p>
<p class="para">
For accessing <em>MySQL Cluster NDB</em> tables, this PHP extension requires
<em>MySQL Cluster 7.2</em> or newer with the NDB Memcache API nodes
enabled.
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