Bug #64998 [Ana->Nab]: php-cgi is buffering output

Edit report at https://bugs.php.net/bug.php?id=64998&edit=1 ID: 64998 Updated by: rasmus@php.net Reported by: m00n dot silv3r at gmail dot com Summary: php-cgi is buffering output -Status: Analyzed +Status: Not a bug Type: Bug Package: *General Issues Operating System: Ubuntu, Centos PHP Version: 5.4.16 Block user comment: N Private report: N New Comment: But you just said a similar CGI setup on Debian worked fine. To me that says it is something in your Ubuntu CGI config. Either way, the only thing PHP needs to do is flush stdout, and it does that. Once PHP has flushed stdout it is up to the web server to deliver this to the browser. Previous Comments: ------------------------------------------------------------------------ [2013-06-09 04:57:10] m00n dot silv3r at gmail dot com This setup is HAVING ISSUE Php 5.4.6 + Ubuntu 12.10 + Apache 2.2.22 + Cgi ------ Same machine, This setup is NOT HAVING ISSUE Php 5.4.6 + Ubuntu 12.10 + Apache 2.2.22 + mod_php ------ Can this conclude that apache is not buffering the output ? If it indeed were, thatn mod_php should too have the issue ? ------------------------------------------------------------------------ [2013-06-09 04:56:42] rasmus@php.net So what exactly is your bug report? Are you saying that: PHP 5.4.x + Debian + Apache 2.2.22 + Cgi is fine but PHP 5.4.x + Ubuntu and Centos + Apache 2.2.22 + Cgi is not? ------------------------------------------------------------------------ [2013-06-09 04:50:20] m00n dot silv3r at gmail dot com Following has been tested to be working fine PHP Version 5.4.4-14 + Debian + Apache 2.2.22 + Cgi Output comes in realtime as expected. ------------------------------------------------------------------------ [2013-06-09 04:20:17] rasmus@php.net I don't see how. CGI is pretty simple. It just writes to stdout and when you call flush() cgi does fflush(stdout). If you are seeing 4k buffers, it isn't coming from PHP. Try it without your web server. Emulate CGI by setting the right env variables (see the CGI spec) and you will see there is no buffering. ------------------------------------------------------------------------ [2013-06-09 04:14:11] m00n dot silv3r at gmail dot com No mod deflate or mod gzip is there. Apache does not appear to be buffering the output. This is further confirmed when debugging with telnet. When opening the page with telnet, the output comes in chunks of 4K. This indicates that its php that is buffering the content. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=64998 -- Edit this bug report at https://bugs.php.net/bug.php?id=64998&edit=1