Laravel timing test

    public function handle()
    {
      $timings = [];
      $results = [];
      $loops = 10;
      $bar = $this->output->createProgressBar($loops);

      for($i = 1; $i <= $loops; $i++){
        $start = microtime(true);

        Contact::select('id')->get();

        $timings[] = microtime(true) - $start;
        $bar->advance();
      }

      $bar->finish();

      $this->comment('');

      $average = array_sum($timings) / count($timings);

      $results[] = [
        Cache::get('last_test_result'),
        $average,
        (Cache::has('last_test_result')) ? (Cache::get('last_test_result') - $average) : 0
      ];

      $headers = ['last', 'current', 'difference'];
      $this->table($headers, $results);

      Cache::forever('last_test_result', $average);
    }