1. <?php
  3. /**
  4. * Binds environment variables with fallback logic for dry-run scenarios.
  5. *
  6. * @param array $expectedVariables An array of environment variable names and their expected values.
  7. * @param array $dryRunValues An array of values to use for dry-run scenarios.
  8. * @return array An array of bound environment variables.
  9. */
  10. function bindEnvironmentVariables(array $expectedVariables, array $dryRunValues = []): array
  11. {
  12. $boundVariables = [];
  14. foreach ($expectedVariables as $variableName => $expectedValue) {
  15. // Check if the environment variable is set.
  16. if (getenv($variableName) !== false) {
  17. $boundVariables[$variableName] = getenv($variableName);
  18. } elseif (isset($dryRunValues[$variableName])) {
  19. // Use dry-run values if available.
  20. $boundVariables[$variableName] = $dryRunValues[$variableName];
  21. } else {
  22. // Fallback: Use a default value (e.g., empty string or null).
  23. $boundVariables[$variableName] = ''; // Or null, or some other suitable default.
  24. }
  25. }
  27. return $boundVariables;
  28. }
  30. // Example usage:
  31. /*
  32. $expectedVars = [
  33. 'DATABASE_URL' => 'mysql://user:pass@host:port/db',
  34. 'DEBUG_MODE' => 'false',
  35. 'API_KEY' => 'your_api_key',
  36. ];
  38. $dryRunVars = [
  39. 'DATABASE_URL' => 'sqlite://test.db',
  40. 'DEBUG_MODE' => 'true',
  41. ];
  43. $boundVars = bindEnvironmentVariables($expectedVars, $dryRunVars);
  45. print_r($boundVars);
  46. */
  48. ?>

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