Fatal error: Uncaught exception 'Zend_Controller_Response_Exception' with message 'Cannot send headers; headers already sent in /home/nhdorpwp/public_html/application/modules/default/controllers/SanPhamController.php, line 1' in /home/nhdorpwp/public_html/library/Zend/Controller/Response/Abstract.php:321 Stack trace: #0 /home/nhdorpwp/public_html/library/Zend/Controller/Response/Abstract.php(339): Zend_Controller_Response_Abstract->canSendHeaders(true) #1 /home/nhdorpwp/public_html/library/Zend/Controller/Response/Abstract.php(766): Zend_Controller_Response_Abstract->sendHeaders() #2 /home/nhdorpwp/public_html/library/Zend/Controller/Front.php(992): Zend_Controller_Response_Abstract->sendResponse() #3 /home/nhdorpwp/public_html/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch() #4 /home/nhdorpwp/public_html/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run() #5 /home/nhdorpwp/public_html/public/index.php(37): Zend_Application->run() #6 {main} thrown in /home/nhdorpwp/public_html/library/Zend/Controller/Response/Abstract.php on line 321