1. <?php
  3. /**
  4. * Backs up URL parameters to a specified directory.
  5. * Includes basic sanity checks.
  6. *
  7. * @param string $backupDir The directory to store the backups.
  8. * @param array $urlParams An associative array of URL parameters to backup.
  9. * @return bool True on success, false on failure.
  10. */
  11. function backupUrlParams(string $backupDir, array $urlParams): bool
  12. {
  13. // Sanity checks
  14. if (!is_dir($backupDir)) {
  15. error_log("Backup directory does not exist: " . $backupDir); // Log error
  16. return false;
  17. }
  19. if (empty($urlParams)) {
  20. error_log("No URL parameters provided."); // Log error
  21. return false;
  22. }
  24. // Generate a unique backup filename
  25. $timestamp = round(microtime(true));
  26. $backupFilename = 'url_params_backup_' . $timestamp . '.txt';
  27. $backupFilePath = $backupDir . '/' . $backupFilename;
  29. try {
  30. // Write URL parameters to file
  31. $file = fopen($backupFilePath, 'w');
  32. if ($file) {
  33. foreach ($urlParams as $key => $value) {
  34. if (is_string($value) || is_numeric($value)) { // Basic sanity check: string or number
  35. fprintf($file, "%s=%s\n", $key, $value);
  36. } else {
  37. error_log("Skipping invalid value for parameter: " . $key . " (value: " . var_export($value, true) . ")"); //Log error
  38. }
  39. }
  40. fclose($file);
  41. return true;
  42. } else {
  43. error_log("Failed to open backup file for writing."); // Log error
  44. return false;
  45. }
  46. } catch (Exception $e) {
  47. error_log("Backup failed: " . $e->getMessage()); //Log error
  48. return false;
  49. }
  50. }
  52. // Example Usage (replace with your actual parameters and directory)
  53. /*
  54. $backupDirectory = '/path/to/your/backup/directory';
  55. $urlParameters = [
  56. 'param1' => 'value1',
  57. 'param2' => 123,
  58. 'param3' => 'value3',
  59. 'param4' => true,
  60. 'param5' => ['a','b','c'] //Will be skipped
  61. ];
  63. if (backupUrlParams($backupDirectory, $urlParameters)) {
  64. echo "URL parameters backed up successfully!\n";
  65. } else {
  66. echo "Backup failed.\n";
  67. }
  68. */
  70. ?>

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