1. <?php
  3. /**
  4. * Attaches metadata to log files for maintenance tasks.
  5. *
  6. * @param string $logFilePath The path to the log file.
  7. * @param array $maintenanceLimits An array of maintenance task limits.
  8. * Example: ['max_lines' => 1000, 'max_size_kb' => 10240]
  9. * @return bool True on success, false on failure.
  10. */
  11. function attachMaintenanceMetadata(string $logFilePath, array $maintenanceLimits): bool
  12. {
  13. if (!file_exists($logFilePath)) {
  14. error_log("Log file not found: " . $logFilePath);
  15. return false;
  16. }
  18. // Define hardcoded maintenance limits
  19. $maxLines = $maintenanceLimits['max_lines'] ?? 1000; //default 1000 lines
  20. $maxSizeKb = $maintenanceLimits['max_size_kb'] ?? 10240; //default 10KB
  22. $fileHandle = fopen($logFilePath, 'r');
  23. if ($fileHandle === false) {
  24. error_log("Failed to open log file: " . $logFilePath);
  25. return false;
  26. }
  28. $fileSize = filesize($logFilePath);
  29. $lineCount = 0;
  31. if ($fileSize > $maxSizeKb * 1024) { // Convert KB to bytes
  32. error_log("Log file exceeds size limit (" . ($maxSizeKb * 1024) . "KB): " . $logFilePath);
  33. fclose($fileHandle);
  34. return false;
  35. }
  37. while (!feof($fileHandle)) {
  38. fgets($fileHandle); // Skip the header if any.
  39. $lineCount++;
  41. if ($lineCount > $maxLines) {
  42. error_log("Log file exceeds line limit (" . $maxLines . "): " . $logFilePath);
  43. fclose($fileHandle);
  44. return false;
  45. }
  46. }
  48. fclose($fileHandle);
  50. // Add metadata to a new file (e.g., maintenance_metadata.txt)
  51. $metadataFilePath = 'maintenance_metadata.txt';
  52. $metadataContent = "Log File: " . $logFilePath . "\n";
  53. $metadataContent .= "Line Count: " . $lineCount . "\n";
  54. $metadataContent .= "File Size: " . number_format($fileSize / (1024 * 1024), 2) . " MB\n"; //Format size in MB
  55. $metadataContent .= "Timestamp: " . date('Y-m-d H:i:s') . "\n";
  57. if (file_put_contents($metadataFilePath, $metadataContent) === false) {
  58. error_log("Failed to write metadata to file: " . $metadataFilePath);
  59. return false;
  60. }
  62. return true;
  63. }
  65. // Example Usage (replace with your log file path)
  66. $logFile = 'my_log_file.log';
  67. $maintenanceLimits = ['max_lines' => 2000, 'max_size_kb' => 20480];
  69. if (attachMaintenanceMetadata($logFile, $maintenanceLimits)) {
  70. echo "Metadata attached successfully.\n";
  71. } else {
  72. echo "Metadata attachment failed.\n";
  73. }
  75. ?>

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