1. <?php
  3. /**
  4. * Measures form submission performance for hypothesis validation with basic input validation.
  5. */
  7. // Function to validate form input (basic example)
  8. function validateForm($data) {
  9. if (empty($data['name'])) {
  10. return false, "Name is required.";
  11. }
  12. if (empty($data['email']) || !filter_var($data['email'], FILTER_VALIDATE_EMAIL)) {
  13. return false, "Invalid email address.";
  14. }
  15. if (strlen($data['message']) < 10) {
  16. return false, "Message must be at least 10 characters.";
  17. }
  18. return true, null; // Validation successful
  19. }
  21. // Function to measure form submission time
  22. function measureSubmissionTime() {
  23. $startTime = microtime(true);
  25. // Simulate form processing (replace with your actual validation/processing logic)
  26. $formData = $_POST; // Get form data (example)
  28. $isValid, $error = validateForm($formData);
  30. $endTime = microtime(true);
  31. $executionTime = $endTime - $startTime;
  33. if ($isValid) {
  34. return ['success' => true, 'time' => $executionTime];
  35. } else {
  36. return ['success' => false, 'time' => $executionTime, 'error' => $error];
  37. }
  38. }
  40. // Main execution
  41. if ($_SERVER['REQUEST_METHOD'] === 'POST') {
  42. $result = measureSubmissionTime();
  44. if ($result['success']) {
  45. echo "Form submitted successfully. Execution time: " . number_format($result['time'], 4) . " seconds.";
  46. } else {
  47. echo "Form submission failed: " . $result['error'];
  48. echo "Execution time: " . number_format($result['time'], 4) . " seconds.";
  49. }
  50. } else {
  51. // Display the form (example)
  52. ?>
  53. <form method="post">
  54. Name: <input type="text" name="name"><br><br>
  55. Email: <input type="email" name="email"><br><br>
  56. Message: <textarea name="message"></textarea><br><br>
  57. <input type="submit" value="Submit">
  58. </form>
  59. <?php
  60. }
  62. ?>

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