1. <?php
  3. /**
  4. * Function to nest JSON structures for an experiment.
  5. *
  6. * @param array $data The initial data array.
  7. * @param array $nesting_rules An array defining the nesting structure.
  8. * Each element should be an associative array with:
  9. * - 'key': The key to nest under.
  10. * - 'value': The value to assign to the nested structure.
  11. * - 'type': 'array' or 'object' (default: 'array')
  12. * @return array The nested JSON structure.
  13. */
  14. function nestJson(array $data, array $nesting_rules): array
  15. {
  16. $result = $data;
  18. foreach ($nesting_rules as $rule) {
  19. $key = $rule['key'];
  20. $value = $rule['value'];
  21. $type = $rule['type'] ?? 'array'; // Default to array if type not specified
  23. if (!is_array($result) || !isset($result[$key])) {
  24. $result[$key] = []; // Initialize if not present
  25. }
  27. if ($type === 'array') {
  28. $result[$key] = array_merge($result[$key], [$value]); // Append to existing array
  29. } elseif ($type === 'object') {
  30. $result[$key][$value] = $value; // Set key-value pairs in an object
  31. }
  32. }
  34. return $result;
  35. }
  37. // Example Usage:
  38. /*
  39. $initial_data = [
  40. 'experiment_id' => '123',
  41. 'timestamp' => '2024-10-27',
  42. 'sensor_readings' => [10, 20, 30]
  43. ];
  45. $nesting_rules = [
  46. ['key' => 'results', 'value' => ['temperature' => 25, 'humidity' => 60]],
  47. ['key' => 'metadata', 'value' => ['user' => 'testuser', 'version' => '1.0']],
  48. ['key' => 'processed_data', 'value' => [
  49. 'filtered' => true,
  50. 'smoothed' => false
  51. ]]
  52. ];
  54. $nested_data = nestJson($initial_data, $nesting_rules);
  56. print_r($nested_data);
  58. */
  62. ?>

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