1. <?php
  3. /**
  4. * Sorts configuration values for sandbox usage with graceful failure handling.
  5. *
  6. * @param array $config_array An array of configuration values.
  7. * @return array|null Sorted array of configuration values, or null on failure.
  8. */
  9. function sortSandboxConfig(array $config_array): ?array
  10. {
  11. // Check if the input is a valid array
  12. if (!is_array($config_array)) {
  13. error_log("Error: Invalid input. Expected an array.");
  14. return null;
  15. }
  17. // Check if the array is empty
  18. if (empty($config_array)) {
  19. error_log("Warning: Input array is empty. Returning an empty array.");
  20. return [];
  21. }
  23. // Attempt to sort the array numerically
  24. try {
  25. usort($config_array, function ($a, $b) {
  26. if (is_numeric($a) && is_numeric($b)) {
  27. return $a - $b; // Numeric sort
  28. } else {
  29. return strcmp($a, $b); // String sort
  30. }
  31. });
  32. } catch (Exception $e) {
  33. error_log("Error during sorting: " . $e->getMessage());
  34. return null;
  35. }
  37. return $config_array;
  38. }
  40. //Example usage
  41. /*
  42. $config = [
  43. 'setting1' => 'value3',
  44. 'setting2' => 'value1',
  45. 'setting3' => 'value2',
  46. 'setting4' => 10,
  47. 'setting5' => 5,
  48. ];
  50. $sortedConfig = sortSandboxConfig($config);
  52. if ($sortedConfig !== null) {
  53. print_r($sortedConfig);
  54. } else {
  55. echo "Failed to sort configuration.";
  56. }
  57. */
  59. ?>

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