1. <?php
  3. /**
  4. * Teardown function for experiment cleanup.
  5. * Performs defensive checks to prevent errors.
  6. */
  7. function teardownExperiment() {
  9. // Defensive check: Ensure the environment variables exist before attempting to unset them.
  10. if (isset($_SERVER['TMP'])) {
  11. unset($_SERVER['TMP']);
  12. //echo "Unset TMP environment variable.\n"; // Debugging - remove in production
  13. }
  15. if (isset($_SERVER['TEMP'])) {
  16. unset($_SERVER['TEMP']);
  17. //echo "Unset TEMP environment variable.\n"; // Debugging - remove in production
  18. }
  20. // Defensive check: Ensure the directory exists before attempting to remove it.
  21. $tempDir = sys_get_temp_dir();
  22. if ($tempDir) {
  23. if (is_dir($tempDir)) {
  24. if (rmdir($tempDir)) {
  25. //echo "Removed temporary directory: " . $tempDir . "\n"; // Debugging - remove in production
  26. } else {
  27. error_log("Error removing temporary directory: " . $tempDir);
  28. }
  29. }
  30. }
  34. // Defensive check: Attempt to kill any lingering processes. This is a best-effort approach.
  35. $pid = proc_close(null); // Kill all processes
  36. if ($pid !== false) {
  37. //echo "Killed processes.\n"; // Debugging - remove in production
  38. } else {
  39. error_log("Error killing processes.");
  40. }
  42. // Defensive check: Ensure the log file exists before trying to remove it.
  43. $logFile = 'experiment.log'; // Or use a dynamically generated path
  44. if (file_exists($logFile)) {
  45. if (unlink($logFile)) {
  46. //echo "Removed log file: " . $logFile . "\n"; // Debugging - remove in production
  47. } else {
  48. error_log("Error removing log file: " . $logFile);
  49. }
  50. }
  52. }
  53. ?>

Add your comment