Catch STDERR

Hi, I am executing exec('some cool command', $stdout, $exitcode); That is fine. I get what I in the beginning wanted. However, now I need to catch the STDERR that the command is generating as well. Some of you might tell me to redirect STDERR to STDOUT, but that is not possible as I need to use the STDOUT as is to automate a process. I know I can do fwrite(STDERR, 'Output some error\n'); So could I fread(STDERR, SOMESIZE)? Is there anyone with experience of best way of doing this? Should I maybe use proc_open or something similar and then write it to a file, and then read that file? Hrm, doesn’t make any sense to do that. Best regards, Peter Lauri   www.dwsasia.com - company web site www.lauri.se - personal web site www.carbonfree.org.uk - become Carbon Free