Configuration of Log

// if below value will be empty '' , directory will be the log-root directory(LOG_PATH)
$config['log_error_dir']='error';
$config['log_log_dir']='log';

$config['log_user']='nobody';

$config['log_file_name_prefix']='thule';
$config['log_error_file_name_prefix']='error';

How to use Log

Log::writeLog("message",LOG_MESSAGE);
Log::writeLog("error message",LOG_ERROR);
Log::writeLog("message",LOG_MESSAGE_ERROR);