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PHP Manual

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PHP 5.5.0 or newer. Some advanced functionality requires PHP 5.5.0 or newer.

The mysqlnd_mux replication and load balancing plugin supports all PHP applications and all available PHP MySQL extensions (mysqli, mysql, PDO_MYSQL). The PHP MySQL extension must be configured to use mysqlnd in order to be able to use the mysqlnd_mux plugin for mysqlnd.


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PHP Manual