1. <?php
  3. /**
  4. * Deduplicates form field records for non-production use with a dry-run mode.
  5. *
  6. * @param array $data An array of form field data, where each element is an associative array.
  7. * @param array $fields An array of field names to consider for deduplication.
  8. * @param bool $dry_run Whether to only show the changes without actually applying them.
  9. * @return array An array of deduplicated records.
  10. */
  11. function deduplicateFormFields(array $data, array $fields, bool $dry_run = true): array
  12. {
  13. $seen = [];
  14. $deduplicated_data = [];
  16. foreach ($data as $record) {
  17. $key = '';
  18. foreach ($fields as $field) {
  19. if (isset($record[$field])) {
  20. $key .= $record[$field] . '|'; // Create a unique key based on specified fields
  21. }
  22. }
  24. if (empty($key)) {
  25. // Skip records with no specified fields
  26. continue;
  27. }
  29. if (in_array($key, $seen)) {
  30. if ($dry_run) {
  31. echo "Dry Run: Skipping duplicate record: " . json_encode($record) . "\n";
  32. } else {
  33. // Remove the duplicate record
  34. unset($record);
  35. }
  36. } else {
  37. $seen[] = $key;
  38. $deduplicated_data[] = $record;
  39. }
  40. }
  42. return $deduplicated_data;
  43. }
  45. // Example Usage (Non-Production)
  46. /*
  47. $form_data = [
  48. ['name' => 'John Doe', 'email' => 'john.doe@example.com', 'age' => 30],
  49. ['name' => 'Jane Smith', 'email' => 'jane.smith@example.com', 'age' => 25],
  50. ['name' => 'John Doe', 'email' => 'john.doe@example.com', 'age' => 30], // Duplicate
  51. ['name' => 'Peter Jones', 'email' => 'peter.jones@example.com', 'age' => 40],
  52. ['name' => 'Jane Smith', 'email' => 'jane.smith@example.com', 'age' => 25], // Duplicate
  53. ];
  55. $fields_to_deduplicate = ['name', 'email'];
  57. $deduplicated_data = deduplicateFormFields($form_data, $fields_to_deduplicate, true);
  59. echo "Deduplicated Data:\n";
  60. print_r($deduplicated_data);
  61. */
  64. ?>

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