protected function normalizeLevel($level)
    {
        if (isset($this->logLevelMap[$level])) {
            return $this->logLevelMap[$level];
        }
        return strtolower($level);
    }
protected function normalizeLevel($level)
    {
        if (isset($this->logLevelMap[$level])) {
            return $this->logLevelMap[$level];
        }
        return strtolower($level);
    }
protected function normalizeLevel ( $ level ) { if ( isset ( $ this -> logLevelMap [ $ level ] ) ) { return $ this -> logLevelMap [ $ level ] ; } return strtolower ( $ level ) ; }
Normalize log level argument
@param $level [int or string] log level
@return [string] log level description
as lowercase
Normalize log level argument