What are the methods to turn on output buffering either within a PHP script or using and htaccess file?
I use the following method in an htaccess file in the root of my application:
php_value output_buffering On
php_value output_handler mb_output_handler
On one of my shared hosting accounts (linux hosting with PHP 5.2.x), the above yields a blank page. Tech support says they can't turn it on in the php.ini file but I can turn it on in my script...
ob_start() and ob_end_flush() also yields the same result. What can I do?
Use ob_start() and ob_end_flush().
ob_start() at the start of the script before any output (not even an empty space).
When u want to output use ob_end_flush().
Check your PHP.ini file and ensure the Output Buffer is enabled.
After that, you can use ob_start() whenever you want to begin buffering and ob_flush() to flush the buffer whenever you want to stop buffering.
来源：https://stackoverflow.com/questions/4620977/php-output-buffering