I have a quite fresh install of the Apache (2.2.3/Centos) + PHP(5.1.6) and following problem: I need to monitor life of one process and in order to do that I run:
$last_line = exec('ps -C snmpd');
and check its output.
Unfortunately I always get nothing. I've checked it with other process names and it seems it can 'see' only Apache's processes.
Any idea how to work this out?
UPDATE:
Execution of the other command system('snmpget -v2c -c public localhost '.$oid, $retval); works great, there is only problem with the ps. What is strange (for me), when I log as apache user and run ps manually it works correctly (shows everything).