1. <?php
  3. /**
  4. * Parses header metadata for data migration.
  5. *
  6. * @param string $header_metadata The raw header metadata string.
  7. * @return array An associative array containing parsed header information.
  8. */
  9. function parseHeaderMetadata(string $header_metadata): array
  10. {
  11. $metadata = [];
  13. // Split the metadata string into individual header entries.
  14. $entries = explode("\n", $header_metadata);
  16. foreach ($entries as $entry) {
  17. // Trim whitespace from the entry.
  18. $entry = trim($entry);
  20. // Skip empty lines.
  21. if (empty($entry)) {
  22. continue;
  23. }
  25. // Split the entry into key-value pairs.
  26. $parts = explode(":", $entry, 2); // Limit to 2 parts to handle values with colons.
  28. if (count($parts) === 2) {
  29. $key = trim($parts[0]); // Key
  30. $value = trim($parts[1]); // Value
  32. // Add the key-value pair to the metadata array.
  33. $metadata[$key] = $value;
  34. } else {
  35. // Handle malformed entries (optional). Log or throw an error.
  36. error_log("Malformed header entry: " . $entry);
  37. }
  38. }
  40. return $metadata;
  41. }
  43. // Example Usage (for testing):
  44. /*
  45. $header_metadata = <<<EOT
  46. Name: customer_id
  47. Email: user@example.com
  48. Created: 2023-10-27
  49. LastModified: 2023-10-28
  50. EOT;
  52. $parsed_data = parseHeaderMetadata($header_metadata);
  54. print_r($parsed_data);
  55. */
  57. ?>

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