1. <?php
  3. /**
  4. * Normalizes environment variables for testing with retry logic.
  5. *
  6. * @param array $envVars An array of environment variable names and values.
  7. * @param int $retries The number of retries for each variable.
  8. * @return array A normalized array of environment variables.
  9. */
  10. function normalizeEnvVars(array $envVars, int $retries = 3): array
  11. {
  12. $normalizedVars = [];
  14. foreach ($envVars as $name => $value) {
  15. $normalizedValue = normalizeValue($value);
  16. $normalizedVars[$name] = $normalizedValue;
  17. }
  19. return $normalizedVars;
  20. }
  22. /**
  23. * Normalizes a single environment variable value.
  24. *
  25. * @param string $value The environment variable value.
  26. * @return string The normalized value.
  27. */
  28. function normalizeValue(string $value): string
  29. {
  30. $value = trim($value); // Remove leading/trailing whitespace
  32. if (empty($value)) {
  33. return null; // or an empty string, depending on desired behavior
  34. }
  36. $value = str_replace(' ', '', $value); // Remove spaces
  38. // Retry logic with a limited number of attempts
  39. $retries = 0;
  40. while ($retries < 3) {
  41. if (is_numeric($value)) {
  42. $value = (int)$value; // Convert to integer if possible
  43. break;
  44. }
  46. // Attempt to convert to boolean
  47. $boolValue = strtolower($value);
  48. if ($boolValue === 'true') {
  49. $value = true;
  50. break;
  51. } elseif ($boolValue === 'false') {
  52. $value = false;
  53. break;
  54. }
  56. $value = str_replace('-', '', $value); //Remove hyphens for numeric values
  57. $value = str_replace('+', '', $value); //Remove plus signs for numeric values
  58. $value = str_replace('=', '', $value); //Remove equals signs for numeric values
  62. $retries++;
  64. if($retries === 3){
  65. //If it fails after 3 retries, return the original string.
  66. break;
  67. }
  68. }
  70. return $value;
  71. }
  75. //Example Usage
  76. /*
  77. $envVars = [
  78. 'DATABASE_URL' => 'mysql://user:password@host:port/database',
  79. 'PORT' => '8080',
  80. 'DEBUG' => 'true',
  81. 'API_KEY' => 'some-key=value',
  82. 'TIMEOUT' => '10s',
  83. 'EMPTY_VAR' => '',
  84. 'SPACES' => ' Lots of spaces ',
  85. 'NUMBER' => '123.45',
  86. 'BOOLEAN' => 'false',
  87. 'NEGATIVE_NUMBER' => '-123',
  88. 'HYPHEN_NUMBER' => '123-456',
  89. ];
  91. $normalizedVars = normalizeEnvVars($envVars, 5);
  93. print_r($normalizedVars);
  94. */
  96. ?>

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