ob_implicit_flush in PHP

ob_implicit_flush — Turn implicit flush on/off

Syntax: void ob_implicit_flush ([ int $flag = true ] )
ob_implicit_flush() will turn implicit flushing on or off. 
Implicit flushing will result in a flush operation after every output call, so that explicit calls to flush() will no longer be needed.

Parameters: 
flag:TRUE to turn implicit flushing on, FALSE otherwise.
Return Values:No value is returned.