Edit report at https://bugs.php.net/bug.php?id=64644&edit=1
ID: 64644 Updated by: ras...@php.net Reported by: matteosistisette at gmail dot com Summary: Client-side abortion is not detected at all -Status: Open +Status: Not a bug Type: Bug Package: *General Issues Operating System: Linux PHP Version: 5.3.24 Block user comment: N Private report: N New Comment: What you are missing is that your single-character output is getting buffered. There is no way to detect a client abort until you actually try to send something to the client either by filling the output buffer and having it send automatically or by forcing it by calling flush() after your echo. So in your test case, add a flush() call after your echo "." and you will see it works as documented. Previous Comments: ------------------------------------------------------------------------ [2013-04-13 18:55:46] matteosistisette at gmail dot com Description: ------------ PHP Version 5.3.3-7+squeeze14 (for some reason it is not in the dropdown) I have read and deeply understood these: http://www.php.net/manual/en/features.connection-handling.php http://www.php.net/manual/en/function.register-shutdown-function.php However, neither in 5.1.6 nor in 5.3.3 do things work even close to described there: - connection_status() always return true, even after the client has closed the connection. - execution of the script keeps going on after the client has closed the connection, even though ignore_user_abort is 0 - a function registered with register_shutdown_function() is not run until the script reaches ends. The script is NOT interrupted (and hence the function not called) when the client aborts the connection. So basically PHP just doesn't detect the client's disconnection AT ALL. Note that this is NOT as if ignore_user_abort was set to 1: if that was the case then connection_status() would return 1 even though the script would keep running and the shutdown function would not be called until the end. That is not the case. ini_get("ignore_user_abort") returns 0, as expected. I'm observing this both on PHP 5.1.6 on CentOS 5.9, and on PHP 5.3 on Debian 6.0.3 Steps to reproduce: - put the script below in the public_html folder - tail -f /path/to/error_log - visit the url of the php script from a browser or client - hit the stop button in the browser or abort connection from the client - watch the error_log Test script: --------------- <?php function myShutdown() { error_log("myShutdown ".connection_status()." ".ini_get("ignore_user_abort")); } register_shutdown_function(myShutdown); echo "Hi!"; error_log(" *** test/test *** "); for ($i=0; $i<10; $i++) { sleep(1); error_log("."); echo "."; } ?> Expected result: ---------------- Expected: at the moment when the client abort connection, you should stop seeing new "." in the log, and you should see immediately: myShutdown 1 0 Actual result: -------------- Observed: Exactly 10 dots (".") appear one at every second, even if the client aborts connection before the 10th dot is reached, and only at the end you see "myShutdown 0 0" This differs with the documented behavior. Everything consistently behaves as if connection from the client was NEVER aborted. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64644&edit=1
