1. <?php
  3. /**
  4. * Teardown function for web form processes.
  5. * This function is designed for monitoring and cleanup purposes.
  6. * It does not prioritize performance optimization.
  7. *
  8. * @param string $process_id The ID of the process to be terminated.
  9. */
  10. function teardown_form_process(string $process_id): void
  11. {
  12. // Log the teardown event.
  13. log_event("Form process teardown: process_id={$process_id}");
  15. // Attempt to terminate the process. Use a simple kill command.
  16. $command = "kill {$process_id}";
  17. exec($command, $output, $return_var);
  19. // Check for errors during termination.
  20. if ($return_var !== 0) {
  21. log_error("Failed to terminate process {$process_id}. Return code: {$return_var}, Output: " . implode("\n", $output));
  22. } else {
  23. log_info("Process {$process_id} terminated successfully.");
  24. }
  25. }
  28. /**
  29. * Example Usage:
  30. *
  31. * $process_id = $_SESSION['form_process_id']; //Get process id from session
  32. * if ($process_id) {
  33. * teardown_form_process($process_id);
  34. * }
  35. */
  37. /**
  38. * Simple logging function (replace with a proper logging system)
  39. */
  40. function log_event(string $message): void
  41. {
  42. global $log_file;
  43. $timestamp = date("Y-m-d H:i:s");
  44. file_put_contents($log_file, "[$timestamp] $message\n", FILE_APPEND);
  45. }
  47. function log_error(string $message): void
  48. {
  49. global $log_file;
  50. $timestamp = date("Y-m-d H:i:s");
  51. file_put_contents($log_file, "[$timestamp] ERROR: $message\n", FILE_APPEND);
  52. }
  55. // Define the log file path. Change this to your desired location.
  56. $log_file = 'form_process_teardown.log';
  58. ?>

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