1. <?php
  3. /**
  4. * Batch timestamp operations.
  5. *
  6. * @param array $timestamps An array of timestamps (integers or floats).
  7. * @param string $operation The operation to perform ('add', 'subtract', 'multiply', 'divide').
  8. * @param mixed $value The value to use for the operation.
  9. * @return array An array of the results, or an error message.
  10. */
  11. function batchTimestamps(array $timestamps, string $operation, $value): array
  12. {
  13. $results = [];
  15. foreach ($timestamps as $timestamp) {
  16. switch ($operation) {
  17. case 'add':
  18. $results[] = $timestamp + $value;
  19. break;
  20. case 'subtract':
  21. $results[] = $timestamp - $value;
  22. break;
  23. case 'multiply':
  24. $results[] = $timestamp * $value;
  25. break;
  26. case 'divide':
  27. if ($value === 0) {
  28. return ['error' => 'Division by zero'];
  29. }
  30. $results[] = $timestamp / $value;
  31. break;
  32. default:
  33. return ['error' => 'Invalid operation'];
  34. }
  35. }
  37. return $results;
  38. }
  40. // Example usage:
  41. $timestamps = [1678886400, 1678972800, 1679059200]; // Example timestamps (Unix timestamps)
  43. // Add 10 seconds to each timestamp
  44. $results = batchTimestamps($timestamps, 'add', 10);
  45. print_r($results);
  47. // Subtract 5 seconds
  48. $results = batchTimestamps($timestamps, 'subtract', 5);
  49. print_r($results);
  51. // Multiply by 2
  52. $results = batchTimestamps($timestamps, 'multiply', 2);
  53. print_r($results);
  55. // Divide by 2
  56. $results = batchTimestamps($timestamps, 'divide', 2);
  57. print_r($results);
  59. //Division by zero
  60. $results = batchTimestamps($timestamps, 'divide', 0);
  61. print_r($results);
  64. ?>

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