Re: System Call Troubles

Michael Stearne wrote: > I am having the strangest problem using system() or exec() or any > variation. None of them work on the Fedora Core 3 system that was > just loaded. The PHP is Version 4.3.11 with Apache 2.0.52, the default > installation for Fedora Core 3. Everything in PHP works as expected > except when trying a system call. If I run : > > <? > system("/bin/ls /tmp"); > ?> > > on my OS X (Apache/1.3.33 (Darwin) PHP/4.3.4) this returns the desired > results, a listing of the tmp directory. On the Fedora box I get > nothing, a blank page. There is content in the /tmp directory on the > Fedora box. These sorts of problems are easy to debug. Switch to your web server user id and issue the same command. You will most often find you have a permission problem, or in the Fedora/Redhat world you will find that SELinux is yanking your chain. You may want to read through: http://fedora.redhat.com/docs/selinux-faq-fc3/ -Rasmus