1. <?php
  3. /**
  4. * Prepares datasets for sandbox usage with edge-case handling.
  5. *
  6. * @param string $dataset_name Name of the dataset.
  7. * @param array $data Array of data to be used in the dataset.
  8. * @param array $edge_cases Array of edge cases to include.
  9. * @return array|false Prepared dataset or false on error.
  10. */
  11. function prepareSandboxDataset(string $dataset_name, array $data, array $edge_cases): array|false
  12. {
  13. // Validate input
  14. if (empty($dataset_name)) {
  15. error_log("Error: Dataset name cannot be empty.");
  16. return false;
  17. }
  19. if (empty($data)) {
  20. error_log("Warning: Dataset data is empty. Using default data.");
  21. $data = [
  22. ['id' => 1, 'name' => 'Example 1', 'value' => 10],
  23. ['id' => 2, 'name' => 'Example 2', 'value' => 20],
  24. ];
  25. }
  27. if (empty($edge_cases)) {
  28. error_log("Warning: No edge cases provided.");
  29. }
  32. // Add edge cases
  33. if (!empty($edge_cases)) {
  34. foreach ($edge_cases as $edge_case) {
  35. if (is_array($edge_case) && isset($edge_case['type']) && isset($edge_case['data'])) {
  36. $data[] = $edge_case['data'];
  37. } else {
  38. error_log("Warning: Invalid edge case format. Skipping: " . json_encode($edge_case));
  39. }
  40. }
  41. }
  43. // Data validation and sanitization (basic example)
  44. foreach ($data as &$item) {
  45. if (!is_array($item) || !isset($item['id']) || !is_numeric($item['id'])) {
  46. error_log("Error: Invalid data format. Skipping item: " . json_encode($item));
  47. unset($item); //remove invalid item
  48. continue;
  49. }
  50. if (!isset($item['name']) || !is_string($item['name'])) {
  51. error_log("Warning: Invalid name format. Setting name to default.");
  52. $item['name'] = 'Default Name';
  53. }
  54. if (!isset($item['value']) || !is_numeric($item['value'])) {
  55. error_log("Warning: Invalid value format. Setting value to 0.");
  56. $item['value'] = 0;
  57. }
  58. }
  60. // Return the prepared dataset
  61. return $data;
  62. }
  64. //Example Usage
  65. $dataset_name = "TestDataset";
  66. $data = [
  67. ['id' => 1, 'name' => 'Item A', 'value' => 10],
  68. ['id' => 2, 'name' => 'Item B', 'value' => 20],
  69. ];
  70. $edge_cases = [
  71. ['type' => 'negative_value', 'data' => ['id' => 3, 'name' => 'Item C', 'value' => -5]],
  72. ['type' => 'missing_name', 'data' => ['id' => 4, 'value' => 15]],
  73. ];
  75. $prepared_dataset = prepareSandboxDataset($dataset_name, $data, $edge_cases);
  77. if ($prepared_dataset !== false) {
  78. echo "<pre>";
  79. print_r($prepared_dataset);
  80. echo "</pre>";
  81. } else {
  82. echo "Dataset preparation failed.";
  83. }
  86. ?>

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