1. <?php
  3. /**
  4. * Sorts environment variables with fixed retry intervals.
  5. *
  6. * This script iterates through environment variables, sorts them alphabetically,
  7. * and optionally retries setting variables if the initial attempt fails.
  8. */
  10. // Array to store environment variables
  11. $envVars = getenv();
  13. if ($envVars === false) {
  14. error_log("Failed to retrieve environment variables.");
  15. exit(1);
  16. }
  19. // Sort the environment variables alphabetically
  20. usort($envVars, function ($a, $b) {
  21. return strcmp($a, $b);
  22. });
  24. // Function to set an environment variable with retry
  25. function setEnvWithRetry($varName, $varValue, $maxRetries = 3, $retryInterval = 2) {
  26. $retries = 0;
  27. while ($retries < $maxRetries) {
  28. putenv($varName . "=" . $varValue); // Set the environment variable
  29. if (getenv($varName) === $varValue) { // Check if the variable is set correctly
  30. return true; // Success
  31. }
  32. usleep($retryInterval * 1000000); // Sleep for retry interval in microseconds.
  33. $retries++;
  34. }
  35. error_log("Failed to set environment variable '$varName' after $maxRetries retries.");
  36. return false; // Failure after all retries
  37. }
  39. // Loop through sorted environment variables and set them
  40. foreach ($envVars as $varName => $varValue) {
  41. if (setEnvWithRetry($varName, $varValue)) {
  42. //Variable set successfully
  43. } else {
  44. error_log("Failed to set environment variable: " . $varName);
  45. }
  46. }
  48. echo "Environment variables sorted and set (with retries).";
  50. ?>

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