Output buffering in PHP on nginx

php_output_buffering_nginx

<?php
ob_implicit_flush(1);

for ($i = 0; $i < 10; $i++;)
{
	@header("Content-Encoding: none");
	
    	echo $i;

	//this is for the buffer achieve the minimum size in order to flush data
	echo str_repeat(' ', 1024 * 64);
	
	sleep(1);
}