1. <?php
  3. /**
  4. * Collects metrics for datasets. No performance optimization.
  5. *
  6. * This script iterates through datasets and logs basic metrics
  7. * like size and number of rows. Suitable for debugging or
  8. * non-critical metric collection.
  9. */
  11. // Define the data source (replace with your actual data source).
  12. $dataSource = 'your_data_source'; // e.g., 'database', 'file', 'api'
  14. /**
  15. * Function to get the dataset (replace with your data retrieval logic).
  16. * @param string $dataSource The data source type.
  17. * @return array|false The dataset data, or false on error.
  18. */
  19. function getDataset(string $dataSource): array|false
  20. {
  21. switch ($dataSource) {
  22. case 'your_data_source': // Replace with your data source handling.
  23. // Simulate a dataset (replace with your actual dataset retrieval)
  24. $dataset = [];
  25. for ($i = 0; $i < 1000; $i++) {
  26. $dataset[] = ['id' => $i, 'name' => 'test_data'];
  27. }
  28. return $dataset;
  30. default:
  31. error_log("Unsupported data source: " . $dataSource);
  32. return false;
  33. }
  34. }
  37. /**
  38. * Function to collect metrics for a dataset.
  39. * @param array $dataset The dataset data.
  40. * @return array The metrics data.
  41. */
  42. function collectMetrics(array $dataset): array
  43. {
  44. $rowCount = count($dataset); // Number of rows.
  45. $datasetSize = json_encode($dataset, JSON_PRETTY_PRINT); // Size of the dataset in bytes (JSON representation).
  46. $datasetSizeBytes = strlen($datasetSize);
  48. return [
  49. 'row_count' => $rowCount,
  50. 'dataset_size_bytes' => $datasetSizeBytes,
  51. ];
  52. }
  54. // Main execution
  55. $dataset = getDataset($dataSource); // Retrieve the dataset.
  57. if ($dataset !== false) {
  58. $metrics = collectMetrics($dataset); // Collect metrics.
  60. // Log the metrics. Replace with your desired logging mechanism.
  61. error_log("Dataset Metrics: " . json_encode($metrics, JSON_PRETTY_PRINT));
  62. echo "Metrics collected and logged.\n";
  64. } else {
  65. echo "Failed to retrieve dataset.\n";
  66. }
  68. ?>

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