1. <?php
  3. /**
  4. * Deduplicates environment variables. For development use only.
  5. * Synchronous execution.
  6. */
  8. /**
  9. * Deduplicates environment variables.
  10. * @param array $env An array of environment variables (key => value).
  11. * @return array A new array with deduplicated environment variables.
  12. */
  13. function deduplicateEnv(array $env): array
  14. {
  15. $uniqueEnv = [];
  16. $seenValues = [];
  18. foreach ($env as $key => $value) {
  19. // Check if the value has already been seen.
  20. if (!in_array($value, $seenValues)) {
  21. $uniqueEnv[$key] = $value;
  22. $seenValues[] = $value;
  23. }
  24. }
  26. return $uniqueEnv;
  27. }
  30. // Example Usage (replace with your actual environment variables)
  31. $environmentVariables = [
  32. 'DEBUG' => 'true',
  33. 'LOG_LEVEL' => 'INFO',
  34. 'DATABASE_URL' => 'mysql://user:password@host:port/db',
  35. 'DEBUG' => 'false', // Duplicate
  36. 'LOG_LEVEL' => 'WARNING', // Duplicate
  37. 'API_KEY' => 'abcdef123456',
  38. 'DATABASE_URL' => 'mysql://user:password@host:port/db' // Duplicate
  39. ];
  42. $deduplicatedVariables = deduplicateEnv($environmentVariables);
  44. // Print the deduplicated environment variables
  45. print_r($deduplicatedVariables);
  47. ?>

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