PHP environment under Apache

Hi, Mandriva Linux 2007.0, Apache 1.3.37, PHP 4.4.4, mod-perl 1.30. Having just completed a server rebuild, (from distro binary RPMs - which have previously worked OK), I find that I was unable to access ENV["TMPDIR"] from php scripts when running under apache. Investigation showed that ENV["TMPDIR"] contains "/root/tmp", so the result is hardly surprising. I also note that ENV["ENV"] contains "/root/.bashrc", and ENV["USERNAME] contains "root". Inserting putenv( "TMPDIR=/tmp" ); into the script works round the problem, but is hardly a neat fix. Running php from the command line results in the correct environment for the current user. Apache is running as user apache(79), group webmaster(505), and _SERVER[...] contains the expected values; _SERVER["TMPDIR"] contains /home/tony/tmp. OK, so PHP thinks its root. How and where does this get set, and how do I fix it? Any answers will receive my undying gratitude. -- Tony van der Hoff | mailto:tony@vanderhoff.org Buckinghamshire, England