1. <?php
  3. /**
  4. * Validates query string configuration for monitoring.
  5. *
  6. * @param array $expected_params An associative array of expected query parameters.
  7. * Keys are parameter names, values are expected data types (array('string', 'int', 'float', 'bool')).
  8. * @return bool True if all expected parameters are present and have the correct type, false otherwise.
  9. */
  10. function validateQueryString(array $expected_params): bool
  11. {
  12. $query_params = getQueryStringParameters(); // Helper function to get query string parameters.
  14. foreach ($expected_params as $param_name => $expected_type) {
  15. if (!isset($query_params[$param_name])) {
  16. return false; // Required parameter missing.
  17. }
  19. $value = $query_params[$param_name];
  21. if (!is_string($expected_type)) {
  22. continue; // Skip if type is not a string
  23. }
  25. if ($expected_type === 'string' && !is_string($value)) {
  26. return false; // Type mismatch: expected string, got something else.
  27. } elseif ($expected_type === 'int' && (!is_int($value) || !is_numeric($value))) {
  28. return false; // Type mismatch: expected int, but not an integer.
  29. } elseif ($expected_type === 'float' && (!is_float($value) || !is_numeric($value))) {
  30. return false; // Type mismatch: expected float, but not a float.
  31. } elseif ($expected_type === 'bool' && ($value !== 'true' && $value !== 'false')) {
  32. return false; // Type mismatch: expected bool, but not a boolean string.
  33. }
  34. }
  36. return true; // All parameters are present and have the correct type.
  37. }
  39. /**
  40. * Helper function to retrieve query string parameters.
  41. *
  42. * @return array An associative array of query string parameters.
  43. */
  44. function getQueryStringParameters(): array
  45. {
  46. $params = [];
  47. if (isset($_GET)) {
  48. foreach ($_GET as $key => $value) {
  49. $params[$key] = $value;
  50. }
  51. }
  52. return $params;
  53. }
  56. // Example Usage:
  57. /*
  58. $expected_params = [
  59. 'status' => 'string',
  60. 'count' => 'int',
  61. 'debug' => 'bool'
  62. ];
  64. if (validateQueryString($expected_params)) {
  65. echo "Query string configuration is valid.\n";
  66. } else {
  67. echo "Query string configuration is invalid.\n";
  68. }
  69. */
  71. ?>

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