require_once 'PEAR/config.php';
bool PEAR_Config::set (string $key, string $value [, string $layer = 'user'])
bool PEAR_Config::set
Set a config value in a specific layer (defaults to 'user'). Enforces the types defined in the configuration_info array. An integer config variable will be cast to int, and a set config variable will be validated against its legal values.
config key
config value
config layer
bool - Returns TRUE on success, FALSE on failure.
This function can not be called statically.