PHP 5.5.0 or newer. Some advanced
PHP 5.5.0 or newer.
mysqlnd_mux replication and load
balancing plugin supports all PHP applications and all available
PHP MySQL extensions
PDO_MYSQL). The PHP
MySQL extension must be configured to use
mysqlnd in order to be
able to use the
mysqlnd_mux plugin for
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_mux
The behaviour of these functions is affected by settings in
Table 17.76. Mysqlnd_mux Configure Options
Here's a short explanation of the configuration directives.