Hi,

I know this has been asked before, but I could not find a definitive answer. I tried different solutions, nothing worked.

I have a PHP script that has to do time intensive operations and provide a status update from time to time. No way around it.
I built a sample PHP script:
<?
@ini_set('zlib.output_compression',0);
@ini_set('implicit_flush',1);
@ob_end_clean();
ob_end_flush();
$i=0;
while($i<10)
{
echo "$i\n";
ob_flush();
flush();
sleep(1);
$i++;
}
?>

I have output_buffering = Off in php.ini

In nginx I have
location ~ \.php$
{
try_files $uri =404;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;

gzip off;
proxy_buffering off;
fastcgi_keep_conn on;
fastcgi_buffers 128 1k; # up to 1k + 128 * 1k
fastcgi_max_temp_file_size 0;
fastcgi_buffer_size 1k;
fastcgi_buffering off;
}
(yeah, I put everything and the kitchen sink)

Server is Ubuntu 13.04, nginx 1.5.9, php 5.4.9

Any ideas?