1. <?php
  3. /**
  4. * Validates environment variables for hypothesis validation, allowing manual overrides.
  5. *
  6. * @param array $expectedVariables An array of expected environment variable names and their expected values.
  7. * @param array $manualOverrides An array of manually overridden environment variable names and their values.
  8. * @return bool True if all validated environment variables are valid, false otherwise.
  9. */
  10. function validateEnvironmentVariables(array $expectedVariables, array $manualOverrides = []): bool
  11. {
  12. foreach ($expectedVariables as $variableName => $expectedValue) {
  13. // Get the environment variable value, using the manual override if available.
  14. $value = getenv($variableName);
  16. //If no environment variable exists, we'll skip this validation.
  17. if ($value === null) {
  18. continue;
  19. }
  21. // Apply manual override if present.
  22. if (isset($manualOverrides[$variableName])) {
  23. $value = $manualOverrides[$variableName];
  24. }
  26. // Check if the environment variable value matches the expected value.
  27. if ($value !== $expectedValue) {
  28. error_log("Environment variable '$variableName' is invalid. Expected: '$expectedValue', Actual: '$value'");
  29. return false; // Validation failed.
  30. }
  31. }
  33. return true; // All validation checks passed.
  34. }
  36. // Example Usage
  37. /*
  38. $expectedVars = [
  39. 'API_KEY' => 'your_api_key',
  40. 'DATABASE_URL' => 'mysql://user:password@host:port/database',
  41. 'DEBUG_MODE' => 'true',
  42. ];
  44. $manualOverrides = [
  45. 'DEBUG_MODE' => 'false', // Example of manual override
  46. ];
  48. if (validateEnvironmentVariables($expectedVars, $manualOverrides)) {
  49. echo "Environment variables are valid.\n";
  50. } else {
  51. echo "Environment variables are invalid.\n";
  52. }
  53. */
  55. ?>

Add your comment