1. <?php
  3. // Configuration
  4. $rate_limit = 10; // Requests per minute
  5. $rate_limit_window = 60; // Time window in seconds
  7. // Session for tracking requests
  8. session_start();
  10. // Function to check rate limit
  11. function isRateLimited() {
  12. global $rate_limit, $rate_limit_window;
  14. if (!isset($_SESSION['request_count'])) {
  15. $_SESSION['request_count'] = 0;
  16. }
  18. if (($_SESSION['request_count'] >= $rate_limit) && (time() - $_SESSION['last_reset'] < $rate_limit_window)) {
  19. return true; // Rate limited
  20. } else {
  21. $_SESSION['request_count']++;
  22. $_SESSION['last_reset'] = time();
  23. return false; // Not rate limited
  24. }
  25. }
  28. // Function to generate nested HTML structures
  29. function generateNestedHTML($depth, $content) {
  30. $html = '';
  31. for ($i = 0; $i < $depth; $i++) {
  32. $html .= '<div>'; // Create a div for each level of nesting
  33. $html .= $content;
  34. $html .= '</div>';
  35. }
  36. return $html;
  37. }
  40. // Example usage - diagnostic page
  41. if ($_SERVER["REQUEST_METHOD"] == "GET") {
  42. if (isRateLimited()) {
  43. header("HTTP/1.1 429 Too Many Requests");
  44. echo "<h1>Too many requests. Please try again later.</h1>";
  45. exit;
  46. }
  48. $depth = isset($_GET['depth']) ? intval($_GET['depth']) : 2; // Get depth from URL, default to 2
  49. $content = "<h1>Diagnostic Page</h1><p>This is a diagnostic page. Depth: " . $depth . "</p>";
  51. $nested_html = generateNestedHTML($depth, $content);
  54. echo '<!DOCTYPE html>';
  55. echo '<html lang="en">';
  56. echo '<head>';
  57. echo '<meta charset="UTF-8">';
  58. echo '<title>Diagnostic Page</title>';
  59. echo '<style>';
  60. echo 'div { border: 1px solid black; margin: 10px; padding: 10px; }';
  61. echo '</style>';
  62. echo '</head>';
  63. echo '<body>';
  64. echo $nested_html;
  65. echo '</body>';
  66. echo '</html>';
  67. } else {
  68. echo "Invalid request method.";
  69. }
  71. ?>

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