code: protected function _addPoint($entete = '[POINT]')
    {
      $trace = debug_backtrace();
      $time = round(microtime(true) * 1000);
      if (count($this->points) == 0) {
        $elapsed = 0;
      } else {
        $elapsed = $time - $this->points[0]['time'];
      }
      $point = array(
        'time' => $time,
        'entete' => $entete,
        'contexte' => $trace[1]['file'] . ' ligne ' . $trace[1]['line'],
        'elapsed' => $elapsed
      );
      $this->points[] = $point;
    }
docs: Ajoute techniquement le point de contrôle
  
  @param  string  $entete (optional) En-tête affiché ('[POINT]' par défaut)