I want use flush() function in for loop that echo content after each loop
my code is:
<?php
if (ob_get_level() == 0) ob_start();
for ($i = 0; $i<10; $i++){
echo "<br> Line".$i." to show.";
ob_flush();
flush();
sleep(2);
}
echo "<br>Done.";
ob_end_flush();
?>
this code works on localhost and another host(Demo) but not working on my main host(Demo + phpinfo page)
how i can solve this? I use chrome
There's a »varnish« proxy in front of your second server. It disturbs the timing of your script. You should generally not rely on timing when returning your response, precisely because there might be a proxyserver in the way. You might want to use some sort of polling or WebSockets instead.
$ nc shoma.info 80
GET /test/1.php HTTP/1.1
Host: shoma.info
Connection: close
HTTP/1.1 200 OK
Server: Apache
X-Powered-By: PHP/5.3.28
Vary: Accept-Encoding
Content-Type: text/html
Content-Length: 209
Accept-Ranges: bytes
Date: Sat, 22 Mar 2014 19:18:40 GMT
X-Varnish: 972965439
Age: 0
Via: 1.1 varnish <------- this is the problem
Connection: close
<br> Line 0 to show.<br> Line 1 to show.<br> Line 2 to show.<br> Line 3 to show.<br> Line 4 to show.<br> Line 5 to show.<br> Line 6 to show.<br> Line 7 to show.<br> Line 8 to show.<br> Line 9 to show.<br>Done.
BTW: My firefox here doesn't even show the »animation« of your first server. So you can't even rely on the browser displaying it.
Header add "disablevcache" "true" to .htaccess but not working. I will try your suggestionProblem in your PHP configuration.
output_buffering — is a parameter in your PHP configuration file php.ini. It enable output buffering for data.
In your PHP configuration it has 'no value'. So, just set output_buffering parameter 'On'. Or if you want set some limit for buffering data set count of bytes (for example'4096') in this directive.
on or off for output_buffering.( i restarted localhost.)