1. <?php
  3. /**
  4. * Function to nest log file structures for debugging.
  5. *
  6. * @param string $logFilePath The path to the log file.
  7. * @param string $level The log level (e.g., "INFO", "WARNING", "ERROR").
  8. * @param string $message The log message.
  9. * @return string The nested log structure as a string.
  10. */
  11. function nestLog(string $logFilePath, string $level, string $message): string
  12. {
  13. // Get the filename from the path.
  14. $filename = basename($logFilePath);
  16. // Create the nested structure.
  17. $nestedLog = "└── " . $filename . ": " . $level . " - " . $message;
  19. // Return the nested log structure.
  20. return $nestedLog;
  21. }
  23. /**
  24. * Example usage: Simulates reading and processing a log file,
  25. * and then creating a nested log structure for each entry.
  26. *
  27. * @param string $logFileContent The content of the log file.
  28. * @return string The nested log structure as a single string.
  29. */
  30. function generateNestedLog(string $logFileContent): string
  31. {
  32. $lines = explode("\n", $logFileContent); // Split the log file content into lines.
  33. $nestedLog = "";
  35. foreach ($lines as $line) {
  36. // Check if the line starts with a specific marker (e.g., "INFO", "WARNING", "ERROR").
  37. if (strpos($line, "INFO:") === 0) {
  38. list($logFilePath, $level, $message) = explode(":", $line);
  39. $nestedLog .= nestLog($logFilePath, $level, trim($message)) . "\n"; //Add the nested log entry.
  40. } elseif (strpos($line, "WARNING:") === 0) {
  41. list($logFilePath, $level, $message) = explode(":", $line);
  42. $nestedLog .= nestLog($logFilePath, $level, trim($message)) . "\n";
  43. } elseif (strpos($line, "ERROR:") === 0) {
  44. list($logFilePath, $level, $message) = explode(":", $line);
  45. $nestedLog .= nestLog($logFilePath, $level, trim($message)) . "\n";
  46. }
  47. }
  49. return $nestedLog;
  50. }
  53. // Example log file content.
  54. $logFileContent = <<<LOG
  55. INFO: /var/log/app.log - Application started successfully.
  56. WARNING: /var/log/app.log - Low disk space detected.
  57. ERROR: /var/log/app.log - Database connection failed.
  58. INFO: /var/log/app.log - User logged in.
  59. LOG
  60. ;
  62. // Generate the nested log structure.
  63. $nestedLogString = generateNestedLog($logFileContent);
  65. // Output the nested log structure.
  66. echo $nestedLogString;
  68. ?>

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