1. <?php
  3. /**
  4. * Invalidates the cache of arrays for monitoring purposes.
  5. * Logs errors if invalidation fails.
  6. *
  7. * @param array $array The array to invalidate.
  8. * @param string $cacheKey The key used to store the array in the cache.
  9. * @param callable $cacheInvalidationFunction A function that handles cache invalidation.
  10. * Should accept the array and cacheKey as arguments.
  11. * @return bool True on success, false on failure.
  12. */
  13. function invalidateArrayCache(array $array, string $cacheKey, callable $cacheInvalidationFunction): bool
  14. {
  15. try {
  16. // Call the cache invalidation function.
  17. $cacheInvalidationFunction($array, $cacheKey);
  18. return true; // Success
  19. } catch (Exception $e) {
  20. // Log the error.
  21. error_log("Error invalidating cache for array with key '$cacheKey': " . $e->getMessage());
  22. return false; // Failure
  23. }
  24. }
  27. /**
  28. * Example cache invalidation function (replace with your actual caching mechanism).
  29. * This is a placeholder. You'll need to adapt it to your specific caching strategy.
  30. *
  31. * @param array $array The array to invalidate.
  32. * @param string $cacheKey The key used to store the array in the cache.
  33. */
  34. function exampleCacheInvalidation(array $array, string $cacheKey): void
  35. {
  36. // Replace this with your actual cache invalidation logic.
  37. // This example just simulates invalidation by removing the key from a simple array.
  38. $cache = []; // Simulate a cache store. Replace with your actual cache.
  40. if (isset($cache[$cacheKey])) {
  41. unset($cache[$cacheKey]);
  42. error_log("Cache invalidated for key: " . $cacheKey);
  43. } else {
  44. error_log("Cache not found for key: " . $cacheKey);
  45. }
  46. }
  48. // Example usage:
  49. $myArray = ['key1' => 'value1', 'key2' => 'value2'];
  50. $myCacheKey = 'my_array_cache';
  52. $success = invalidateArrayCache($myArray, $myCacheKey, 'exampleCacheInvalidation');
  54. if ($success) {
  55. echo "Cache invalidated successfully.\n";
  56. } else {
  57. echo "Cache invalidation failed. Check error logs.\n";
  58. }
  60. ?>

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