1. <?php
  3. /**
  4. * Compares two datasets of DOM elements and outputs the differences.
  5. *
  6. * @param mixed $dataset1 The first dataset of DOM elements (array of DOMNode objects).
  7. * @param mixed $dataset2 The second dataset of DOM elements (array of DOMNode objects).
  8. * @return void Outputs the differences to the console.
  9. */
  10. function diffDomDatasets($dataset1, $dataset2) {
  12. if (!is_array($dataset1) || !is_array($dataset2)) {
  13. echo "Error: Datasets must be arrays.\n";
  14. return;
  15. }
  17. $len1 = count($dataset1);
  18. $len2 = count($dataset2);
  20. $maxLength = max($len1, $len2);
  22. for ($i = 0; $i < $maxLength; $i++) {
  23. if ($i >= $len1) {
  24. echo "Dataset 1 has fewer elements, adding elements from Dataset 2.\n";
  25. printDomElement($dataset2[$i]); // Output element from dataset 2
  26. } elseif ($i >= $len2) {
  27. echo "Dataset 2 has fewer elements.\n";
  28. printDomElement($dataset1[$i]); // Output element from dataset 1
  29. } else {
  30. if ($dataset1[$i] !== $dataset2[$i]) {
  31. echo "Difference at index $i:\n";
  32. printDomElement($dataset1[$i]);
  33. printDomElement($dataset2[$i]);
  34. }
  35. }
  36. }
  37. }
  40. /**
  41. * Prints a DOM element to the console (basic representation).
  42. * @param DOMNode $node The DOMNode to print.
  43. */
  44. function printDomElement(DOMNode $node) {
  45. echo " Type: " . get_class($node) . "\n";
  46. echo " Tag: " . $node->nodeName . "\n";
  47. echo " Attributes: ";
  48. foreach ($node->attributes as $attr) {
  49. echo $attr->name . "=\"" . $attr->value . "\" ";
  50. }
  51. echo "\n";
  52. }
  56. //Example Usage (for testing)
  57. /*
  58. $doc1 = new DOMDocument();
  59. $element1 = $doc1->createElement('div');
  60. $element1->setAttribute('id', 'test1');
  61. $element1->appendChild($doc1->createElement('p', 'First Element'));
  62. $doc1->appendChild($element1);
  64. $element2 = $doc1->createElement('div');
  65. $element2->setAttribute('id', 'test1');
  66. $element2->appendChild($doc1->createElement('p', 'Second Element'));
  67. $doc1->appendChild($element2);
  69. $dataset1 = [$doc1->getElementById('test1')];
  70. $dataset2 = [$doc1->getElementById('test1')];
  73. diffDomDatasets($dataset1, $dataset2);
  75. */
  77. ?>

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