Hi,
I want to get the list of running processes. also, I call exec() with
"ps -A"
(ps -A displays almost all processes of all users)
Unfortunatly, the output of "ps -A" seems incomplete
the test file test.php:
<?php
unset($buf);
unset($res);
exec("ps -A", $buf, $res);
for($i=0; $i < count($buf); $i++)
{
echo($buf[$i]."<br>");
}
?>
If I run the test.php under the context of httpd (from
http://<server>/test.php), I can see only a subset of running processes
(some processes of user "apache")
PID TTY TIME CMD
3207 ? 00:00:00 httpd
3359 ? 00:00:00 httpd
3360 ? 00:00:00 httpd
3361 ? 00:00:00 httpd
3362 ? 00:00:00 httpd
3363 ? 00:00:00 httpd
3364 ? 00:00:00 httpd
3365 ? 00:00:00 httpd
3366 ? 00:00:00 httpd
3569 ? 00:00:00 ps
If I run the same script directly from php (from user apache) , I can
see *all* processes as expected
# sudo -u apache php -f test.php
PID TTY TIME CMD<br>
1 ? 00:00:01 init<br>
2 ? 00:00:00 migration/0<br>
3 ? 00:00:00 ksoftirqd/0<br>
4 ? 00:00:00 watchdog/0<br>
5 ? 00:00:00 events/0<br>
6 ? 00:00:00 khelper<br>
[...]
Is it a problem with exec() or with "ps -A" or with .... ?
any ideas ?
more information :
OS = centos 5.5
# httpd -v
Server version: Apache/2.2.3
Server built: Jan 10 2013 08:22:14
# php -v
PHP 5.3.3 (cli) (built: Jun 27 2012 12:25:37)
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