I have a browser triggered php-script which is ment to start a process. The Process class then wants to use /dev/tty which on my Ubuntu 14 LTS is only readable as root per default.

that means no matter which process I start it runs into a Warning and finally dies:

Warning: proc_open(/dev/tty): failed to open stream: No such device or address in XXX/vendor/symfony/process/Symfony/Component/Process/Process.php on line 291

Should setTty also throw exceptions when /dev/tty is not readable?