1. <?php
  3. /**
  4. * Cleans metadata data for routine automation.
  5. * Handles various edge cases to ensure data integrity.
  6. *
  7. * @param array $metadata_data An array of metadata data.
  8. * @return array Cleaned metadata data.
  9. */
  10. function cleanMetadata(array $metadata_data): array
  11. {
  12. $cleaned_data = [];
  14. foreach ($metadata_data as $key => $value) {
  15. // Handle null/empty values
  16. if ($value === null || $value === '') {
  17. $cleaned_data[$key] = null; // or empty string, depending on requirement
  18. continue;
  19. }
  21. // Data type conversion and validation
  22. if (is_string($value)) {
  23. $cleaned_data[$key] = trim($value); // Remove leading/trailing whitespace
  24. $cleaned_data[$key] = htmlspecialchars($cleaned_data[$key], ENT_QUOTES, 'UTF-8'); //Escape HTML entities for security
  25. } elseif (is_int($value)) {
  26. $cleaned_data[$key] = (int)$value; // Ensure integer type
  27. } elseif (is_float($value)) {
  28. $cleaned_data[$key] = (float)$value; // Ensure float type
  29. } elseif (is_array($value)) {
  30. //Handle arrays - flatten or process recursively as needed
  31. $cleaned_array = [];
  32. foreach($value as $item){
  33. if(is_string($item)){
  34. $cleaned_array[] = trim($item);
  35. }
  36. //Add other type handling if needed
  37. }
  39. $cleaned_data[$key] = $cleaned_array;
  41. } else {
  42. // Unknown data type - log or handle as needed
  43. error_log("Unknown data type for key: " . $key . ". Value: " . $value);
  44. $cleaned_data[$key] = null; // or a default value
  45. }
  46. }
  48. return $cleaned_data;
  49. }
  52. //Example Usage:
  53. /*
  54. $metadata = [
  55. 'name' => ' John Doe ',
  56. 'email' => '',
  57. 'age' => '30',
  58. 'tags' => ['tag1', 'tag2'],
  59. 'description' => '<div>Some HTML</div>',
  60. 'active' => true,
  61. 'value' => 123.45,
  62. 'null_value' => null
  63. ];
  65. $cleanedMetadata = cleanMetadata($metadata);
  67. print_r($cleanedMetadata);
  68. */
  70. ?>

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