PHP command line output buffer outputs regardless of buffer settings

Question

I have some classes I am writing unit tests for which have echoes in them. I want to suppress this output and thought ob_start() and ob_clean() would s

Answer 1

Do you have implicit_flush set to true in your PHP ini? This can cause the behaviour you are seeing as it tells PHP to tell the output layer to flush itself automatically after every output block. This is equivalent to calling the PHP function flush() after each and every call to print() or echo() and each and every HTML block.