PHP Decode

<?php

/**
 * Sets a callback for user-defined read/write splitting
 *
 * @phpstub
 *
 * @param string $function
 *
 * @return bool Host to run the query on. The host URI is to be taken from the
 *              master and slave connection lists passed to the callback function.
 *              If callback returns a value neither found in the master nor in the slave
 *              connection lists the plugin will fallback to the second pick method configured
 *              via the  setting in the plugin configuration file.
 *              If not second pick method is given, the plugin falls back to the build-in
 *              default pick method for server selection.
 */
function mysqlnd_ms_set_user_pick_server($function)
{
} ?>