[PHP] pcntl_fork behavior with php version 5.1.2
Hi,
i got some trouble with a PHP script using pcntl_fork do run some work in
background.
Runnig my script on my development system (PHP version 5.3.3-7) it behaves
like
intended. But running it on my production test system (PHP version PHP
5.1.2), i got
some strange results. The problem is, that when i logout from my SSH
session the
console closes not properly, like somethings is kept open. Sadly, updating
this old PHP
version is not a option... :/
Does anyone have an idea whats going on?
Thanks in advance
Ralf
The script is this:
#!/usr/bin/env php
?php
$pid = pcntl_fork();
if ($pid == -1) {
die('Fork failed!');
} else if($pid 0) {
exit(0); // close parent process
} else { // child process:
while(true) {
sleep(10);
// do your work -- stripped
}
}
?
do not work with:
PHP 5.1.2 with Suhosin-Patch 0.9.6 (cli) (built: Dec 12 2007 02:42:35)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
works with:
PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011 08:24:40)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
Re: [PHP] pcntl_fork behavior with php version 5.1.2
On 03/29/2012 12:49 PM, Ralf Gnädinger wrote:
Hi,
i got some trouble with a PHP script using pcntl_fork do run some work in
background.
Runnig my script on my development system (PHP version 5.3.3-7) it behaves
like
intended. But running it on my production test system (PHP version PHP
5.1.2), i got
some strange results. The problem is, that when i logout from my SSH
session the
console closes not properly, like somethings is kept open. Sadly, updating
this old PHP
version is not a option... :/
Does anyone have an idea whats going on?
Thanks in advance
Ralf
The script is this:
#!/usr/bin/env php
?php
$pid = pcntl_fork();
if ($pid == -1) {
die('Fork failed!');
} else if($pid 0) {
exit(0); // close parent process
} else { // child process:
while(true) {
sleep(10);
// do your work -- stripped
}
}
?
do not work with:
PHP 5.1.2 with Suhosin-Patch 0.9.6 (cli) (built: Dec 12 2007 02:42:35)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
works with:
PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011 08:24:40)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
This sounds more like an OS issue then a PHP issue.
What are the two OSs involved?
--
Jim Lucas
http://www.cmsws.com/
http://www.cmsws.com/examples/
http://www.bendsource.com/
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] pcntl_fork behavior with php version 5.1.2
On 29 Mar 2012, at 20:49, Ralf Gnädinger wrote:
i got some trouble with a PHP script using pcntl_fork do run some work in
background.
Runnig my script on my development system (PHP version 5.3.3-7) it behaves
like
intended. But running it on my production test system (PHP version PHP
5.1.2), i got
some strange results. The problem is, that when i logout from my SSH
session the
console closes not properly, like somethings is kept open. Sadly, updating
this old PHP
version is not a option... :/
Does anyone have an idea whats going on?
Thanks in advance
Ralf
The script is this:
#!/usr/bin/env php
?php
$pid = pcntl_fork();
if ($pid == -1) {
die('Fork failed!');
} else if($pid 0) {
exit(0); // close parent process
} else { // child process:
while(true) {
sleep(10);
// do your work -- stripped
}
}
?
do not work with:
PHP 5.1.2 with Suhosin-Patch 0.9.6 (cli) (built: Dec 12 2007 02:42:35)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
works with:
PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011 08:24:40)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
You need to detach the child from the terminal using posix_setsid(). I don't
know why it's working on your development machine, but it's probably simply
that you're not seeing this issue due to how you access that development
machine.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] pcntl_fork behavior with php version 5.1.2
development os is Debian GNU/Linux 6.0
test os is SUSE LINUX 10.1 (i586)
Am 29. März 2012 23:02 schrieb Jim Lucas li...@cmsws.com:
On 03/29/2012 12:49 PM, Ralf Gnädinger wrote:
Hi,
i got some trouble with a PHP script using pcntl_fork do run some work in
background.
Runnig my script on my development system (PHP version 5.3.3-7) it behaves
like
intended. But running it on my production test system (PHP version PHP
5.1.2), i got
some strange results. The problem is, that when i logout from my SSH
session the
console closes not properly, like somethings is kept open. Sadly, updating
this old PHP
version is not a option... :/
Does anyone have an idea whats going on?
Thanks in advance
Ralf
The script is this:
#!/usr/bin/env php
?php
$pid = pcntl_fork();
if ($pid == -1) {
die('Fork failed!');
} else if($pid 0) {
exit(0); // close parent process
} else { // child process:
while(true) {
sleep(10);
// do your work -- stripped
}
}
?
do not work with:
PHP 5.1.2 with Suhosin-Patch 0.9.6 (cli) (built: Dec 12 2007 02:42:35)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
works with:
PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011
08:24:40)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
This sounds more like an OS issue then a PHP issue.
What are the two OSs involved?
--
Jim Lucas
http://www.cmsws.com/
http://www.cmsws.com/examples/
http://www.bendsource.com/
Re: [PHP] pcntl_fork behavior with php version 5.1.2
I will try posix_setsid(). Both machines were accessed via a ssh client
(e.g. putty or ssh from a other linux box).
Thanks for your advice.
Am 29. März 2012 23:08 schrieb Stuart Dallas stu...@3ft9.com:
On 29 Mar 2012, at 20:49, Ralf Gnädinger wrote:
i got some trouble with a PHP script using pcntl_fork do run some work in
background.
Runnig my script on my development system (PHP version 5.3.3-7) it
behaves
like
intended. But running it on my production test system (PHP version PHP
5.1.2), i got
some strange results. The problem is, that when i logout from my SSH
session the
console closes not properly, like somethings is kept open. Sadly,
updating
this old PHP
version is not a option... :/
Does anyone have an idea whats going on?
Thanks in advance
Ralf
The script is this:
#!/usr/bin/env php
?php
$pid = pcntl_fork();
if ($pid == -1) {
die('Fork failed!');
} else if($pid 0) {
exit(0); // close parent process
} else { // child process:
while(true) {
sleep(10);
// do your work -- stripped
}
}
?
do not work with:
PHP 5.1.2 with Suhosin-Patch 0.9.6 (cli) (built: Dec 12 2007 02:42:35)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
works with:
PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011
08:24:40)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
You need to detach the child from the terminal using posix_setsid(). I
don't know why it's working on your development machine, but it's
probably simply that you're not seeing this issue due to how you access
that development machine.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
