diffInDays() публичный статический Метод

Get the diff in days for a given file and carbon date
public static diffInDays ( $log, Carbon\Carbon $date ) : integer
$log
$date Carbon\Carbon
Результат integer
 /**
  * @test
  */
 public function it_gets_the_diff()
 {
     $today = Carbon::today();
     $logDate = Carbon::today()->subDays(10);
     $log = "laravel-{$logDate->toDateString()}.log";
     $this->assertSame(10, LogUtil::diffInDays($log, $today));
 }
 private function remoteCleanUp()
 {
     $this->logger->info("Starting remote clean up");
     $logs = $this->remoteRepo->getCompressed();
     foreach ($logs as $log) {
         $days = LogUtil::diffInDays($log, $this->today);
         $this->logger->info("{$log} is {$days} day(s) old");
         if ($days > $this->remoteRetentionDaysCalculated) {
             $this->logger->info("Deleting {$log}");
             $this->remoteRepo->delete($log);
         } else {
             $this->logger->info("Keeping {$log}");
         }
     }
 }