22.9.10.5. Installing/Configuring

22.9.10.5.1. Requirements

PHP: this extension requires PHP 5.4+, version PHP 5.4.4 or never. The required PHP extensions are PCRE (enabled by default), and the memcached extension version 2.0.x.

The mysqlnd_memcache Memcache plugin supports all PHP applications and all available PHP MySQL extensions (mysqli, mysql, PDO_MYSQL). The PHP MySQL extension must be configured with mysqlnd support.

For accessing InnoDB tables, this PHP extension requires MySQL Server 5.6.6 or newer with the InnoDB Memcache Daemon Plugin enabled.

For accessing MySQL Cluster NDB tables, this PHP extension requires MySQL Cluster 7.2 or newer with the NDB Memcache API nodes enabled.

22.9.10.5.2. Installation

This PECL extension is not bundled with PHP.

Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: http://pecl.php.net/package/mysqlnd_memcache

A DLL for this PECL extension is currently unavailable. See also the building on Windows section.

22.9.10.5.3. Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Table 22.81. Mysqlnd_memcache Configure Options

Name	Default	Changeable	Changelog
mysqlnd_memcache.enable	1	`PHP_INI_SYSTEM`	Available since 1.0.0

Here's a short explanation of the configuration directives.

mysqlnd_memcache.enable integer: Enables or disables the plugin. If disabled, the extension will not plug into mysqlnd to proxy internal mysqlnd C API calls.

Note

This option is mainly used by developers to build this extension statically into PHP. General users are encouraged to build this extension as a shared object, and to unload it completely when it is not needed.