1. <?php
  3. /**
  4. * Collects metrics of binary files for validation checks with limited memory usage.
  5. *
  6. * @param string $filePath The path to the binary file.
  7. * @return array An associative array containing file metrics. Returns an empty array on error.
  8. */
  9. function getBinaryFileMetrics(string $filePath): array
  10. {
  11. $metrics = [];
  13. if (!file_exists($filePath)) {
  14. error_log("File not found: $filePath"); // Log error
  15. return [];
  16. }
  18. $fileSize = filesize($filePath); // Get file size
  19. $metrics['file_size'] = $fileSize;
  21. $fileHandle = fopen($filePath, 'rb'); // Open file in binary read mode
  23. if ($fileHandle === false) {
  24. error_log("Failed to open file: $filePath"); // Log error
  25. return [];
  26. }
  28. $bufferSize = 4096; // Adjust buffer size for memory usage
  29. $buffer = fread($fileHandle, $bufferSize);
  31. while ($buffer !== false) {
  32. $metrics['bytes_read'] = $metrics['bytes_read'] ?? 0 + strlen($buffer);
  33. $buffer = fread($fileHandle, $bufferSize);
  34. }
  36. fclose($fileHandle); // Close file handle
  38. $metrics['bytes_read'] = $metrics['bytes_read'] ?? 0; // Ensure byte count is initialized if no data read
  39. $metrics['file_size'] = $fileSize;
  41. return $metrics;
  42. }
  45. // Example Usage:
  46. // $metrics = getBinaryFileMetrics('/path/to/your/binary_file.bin');
  47. // if (!empty($metrics)) {
  48. // print_r($metrics);
  49. // }
  51. ?>

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