1. <?php
  3. function validateNestedString(array $data, array $expectedFormats): array
  4. {
  5. $results = [];
  7. foreach ($expectedFormats as $key => $format) {
  8. $value = $data[$key] ?? null; // Handle missing keys
  10. if ($value === null) {
  11. $results[$key] = ['valid' => false, 'message' => 'Missing value'];
  12. continue;
  13. }
  15. $isValid = true;
  16. $message = '';
  18. foreach ($format as $field => $validation) {
  19. $valueToCheck = $value; //use the value, regardless of field.
  21. if (is_string($validation)) {
  22. // Simple string validation (e.g., length, pattern)
  23. if (preg_match($validation, $valueToCheck) === 0) {
  24. $isValid = false;
  25. $message = $field . ': Invalid format';
  26. break;
  27. }
  28. } elseif (is_array($validation)) {
  29. // Nested validation
  30. if (!is_array($valueToCheck) || !is_array($validation)) {
  31. $isValid = false;
  32. $message = $field . ': Invalid nested structure';
  33. break;
  34. }
  36. $nestedValid = true;
  37. foreach ($validation as $nestedField => $nestedValidation) {
  38. $nestedValue = $valueToCheck[$nestedField];
  39. if(!is_string($nestedValue)){
  40. $nestedValid = false;
  41. $message = $field . "." . $nestedField . ": Invalid nested value type";
  42. break;
  43. }
  44. if (preg_match($nestedValidation, $nestedValue) === 0) {
  45. $nestedValid = false;
  46. $message = $field . "." . $nestedField . ': Invalid format';
  47. break;
  48. }
  49. }
  50. if (!$nestedValid) {
  51. $isValid = false;
  52. $message = $field . "." . $nestedField . ': Invalid format';
  53. }
  54. }
  55. }
  57. if ($isValid) {
  58. $results[$key] = ['valid' => true, 'message' => 'Valid'];
  59. } else {
  60. $results[$key] = ['valid' => false, 'message' => $message];
  61. }
  62. }
  64. return $results;
  65. }
  67. // Example Usage:
  68. $data = [
  69. 'name' => 'John Doe',
  70. 'email' => 'john.doe@example.com',
  71. 'age' => 30,
  72. 'address' => [
  73. 'street' => '123 Main St',
  74. 'city' => 'Anytown',
  75. 'zip' => '12345'
  76. ],
  77. 'phone' => '555-123-4567'
  78. ];
  80. $expectedFormats = [
  81. 'name' => '^[A-Za-z ]+$', // name should be letters and spaces
  82. 'email' => '^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$', //email validation
  83. 'address' => [
  84. 'street' => '^[A-Za-z0-9 ]+$', // street should be letters and spaces
  85. 'city' => '^[A-Za-z ]+$', // city should be letters and spaces
  86. 'zip' => '^\d{5}$' // zip should be 5 digits
  87. ],
  88. 'phone' => '^\d{3}-\d{3}-\d{4}$' //phone number format
  89. ];
  91. $validationResults = validateNestedString($data, $expectedFormats);
  93. print_r($validationResults);
  95. ?>

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