public static function start($identifier = null, $addInfo = null)
    {
        if (!self::$_enabled) return null;
        return new Kwf_Benchmark_Profile($identifier, $addInfo);
    }
public static function start($identifier = null, $addInfo = null)
    {
        if (!self::$_enabled) return null;
        return new Kwf_Benchmark_Profile($identifier, $addInfo);
    }
public static function start ( $ identifier = null , $ addInfo = null ) { if ( ! self :: $ _enabled ) return null ; return new Kwf_Benchmark_Profile ( $ identifier , $ addInfo ) ; }
Startet eine Sequenz

@param string $identifier
Startet eine Sequenz