TCPDF ERROR: Some data has already been output, can’t send PDF file

by

Add the function ob_end_clean(); before call the Output function.
It worked for me within a custom WordPress function!

ob_end_clean();
$pdf->Output($pdf_name, 'I');

More Related Contents:

  1. TCPDF UTF-8 symbols not showing up
  2. Why does TCPDF ignore my inline CSS?
  3. TCPDF error :Unable to get the size of the image
  4. How do you add custom fonts in TCPDF?
  5. How to create this type of JSON data from PHP [closed]
  6. How to code in php of calculating the difference?
  7. How do I implement basic “Long Polling”?
  8. Why would $_FILES be empty when uploading files to PHP?
  9. How to convert JSON string to array
  10. What are the best practices for avoiding xss attacks in a PHP site [closed]
  11. PHP foreach loop key value
  12. How to execute two mysql queries as one in PHP/MYSQL?
  13. Zero-pad digits in string
  14. How to attach two or multiple files and send mail in PHP [duplicate]
  15. SSL operation failed with code 1: dh key too small
  16. Can’t pass mysqli connection in session in php
  17. select outgoing ip for curl request
  18. Get last modified file in a directory
  19. PDO fetchAll group key-value pairs into assoc array
  20. Post to a facebook page without “manage_pages” permission using php
  21. Call another PHP script and return control to user before the other script completes
  22. case-insensitive array_unique
  23. wordpress plugin -> Call to undefined function wp_get_current_user()
  24. Eloquent Parent-Child relationship on same model
  25. PHP 7 and strict “resource” types
  26. Setting up DomainKeys/DKIM in a PHP-based SMTP client [closed]
  27. PHP email validation [duplicate]
  28. simple xml add namespaced child
  29. Switch between multiple database in PDO
  30. Content-length and other HTTP headers?

Leave a Comment