1. <?php
  3. /**
  4. * Function to attach response header metadata for testing.
  5. *
  6. * @param WP_Error $error WP_Error object containing error information.
  7. */
  8. function test_response_headers( WP_Error $error ) {
  10. // Check if there's an error
  11. if ( ! empty( $error ) ) {
  13. // Add custom header for testing
  14. header( 'X-Test-Response: Error occurred' );
  16. // Add more metadata as needed
  17. header( 'X-Test-Status: ' . $error->code );
  18. header( 'X-Test-Message: ' . $error->message );
  19. header( 'X-Test-Type: ' . $error->type );
  21. // Optionally, add other relevant metadata
  22. if ( isset( $error->data ) ) {
  23. header( 'X-Test-Data: ' . json_encode( $error->data ) );
  24. }
  26. // Output error message
  27. echo 'Error: ' . esc_html( $error->message );
  29. } else {
  31. // Add custom header for successful response
  32. header( 'X-Test-Response: Success' );
  34. // Add metadata for successful response
  35. header( 'X-Test-Status: 0' );
  36. header( 'X-Test-Message: Operation completed successfully' );
  39. // Optionally, add other relevant metadata
  40. // header( 'X-Test-Data: ' . json_encode( $data ) );
  42. echo 'Success!';
  43. }
  45. exit; //Important: Stop script execution after headers are sent.
  46. }
  48. /**
  49. * Example usage within a WordPress context.
  50. *
  51. * @param WP_Error $error WP_Error object.
  52. */
  53. add_action( 'template_redirect', 'test_response_headers' );
  55. ?>

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