Bug #54062 [Fbk->Opn]: PHP does not notice user abort

Edit report at http://bugs.php.net/bug.php?id=54062&edit=1 ID: 54062 User updated by: james dot mk dot green at gmail dot com Reported by: james dot mk dot green at gmail dot com Summary: PHP does not notice user abort -Status: Feedback +Status: Open Type: Bug Package: Network related Operating System: Linux/Windows PHP Version: Irrelevant Block user comment: N Private report: N New Comment: As unlikely as it sounds this may be an issue within Firefox. I pasted the code from Rasmus onto the web server next door to mine. Fired it up in Firefox and PHP detected the user abort. Repeated my script but again it did not work. Slowly I worked the code from Rasmus directly in to my script but still no joy. At this point all that was different was the name of the shutdown function. Then tried using wget as the client and both scripts work. Repeated Rasmus' script from Firefox and it no longer detected user abort. So we have a bug within the client - as far as I can tell. I am least happy I can work with this, thanks for all the tests and sorry for wasting people's time! Previous Comments: ------------------------------------------------------------------------ [2011-02-21 19:40:41] rasmus@php.net By the way, why so complicated a test? Try the simple case: <?php ignore_user_abort(false); for($i=0;$i<1000;$i++) { sleep(1); $str = "Line $i\n"; echo $str; flush(); file_put_contents("/tmp/heartbeat.log", $str, FILE_APPEND); } Things that might get in the way of this working for you would be if you have some sort of reverse proxy cache in front of your web server. Like a Cloudflare, for example. Or your own setup. You could also have multiple levels of output buffering going on. You could check that case with an ob_get_level() call. ------------------------------------------------------------------------ [2011-02-21 19:21:05] rasmus@php.net Works fine for me on a Debian box running mod_php with Apache prefork, and a Centos box running nginx and php-fpm. ------------------------------------------------------------------------ [2011-02-21 17:42:42] james dot mk dot green at gmail dot com johannes, it's been tested on a Windows server too (same behaviour). Besides, cataphract seems to be using Ubuntu's PHP package too. Perhaps it's something to do with web server configuration? I'm using CGI on Windows, and mod_php on Ubuntu (Apache Prefork MPM). What might cause this behaviour? ------------------------------------------------------------------------ [2011-02-21 17:39:22] johannes@php.net Please try using this snapshot: http://snaps.php.net/php5.3-latest.tar.gz For Windows: http://windows.php.net/snapshots/ Please use vanilla PHP from php.net. We have no idea what kind of patches Ubuntu applies and what they might break. ------------------------------------------------------------------------ [2011-02-21 17:31:59] james dot mk dot green at gmail dot com Feb 21 16:28:57 blofeld apache2: The connection remains Feb 21 16:29:41 blofeld apache2: Connection opened Feb 21 16:29:43 blofeld apache2: Completed usleep() Feb 21 16:29:43 blofeld apache2: ob_end_flush() called Feb 21 16:29:43 blofeld apache2: Have flushed() Feb 21 16:29:43 blofeld apache2: Echo completed Feb 21 16:29:43 blofeld apache2: Have slept Feb 21 16:29:43 blofeld apache2: Shutdown detected. Feb 21 16:29:43 blofeld apache2: The result of connection_status() is: 0 Feb 21 16:29:43 blofeld apache2: The connection remains That's what I get using Firefox with PHP 5.3.3-1ubuntu9.3 on apache 2.2.16-1ubuntu3.1 using ubuntu Ubuntu 10.10. All I do is type in the url of my disconnect.php, hit enter then immediately hit the stop button. ------------------------------------------------------------------------ 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 http://bugs.php.net/bug.php?id=54062 -- Edit this bug report at http://bugs.php.net/bug.php?id=54062&edit=1