(PHP 4, PHP 5, PHP 7) Determine terminal device name

(PHP 4, PHP 5, PHP 7) Get the current sid of the process

(PHP 4, PHP 5, PHP 7) Make the current process a session leader

(PHP 4, PHP 5, PHP 7) Return info about a group by group id

(PHP 4, PHP 5, PHP 7) Return the effective group ID of the current process

(PHP 4, PHP 5, PHP 7) Return info about system resource limits

(PHP 4, PHP 5, PHP 7) Send a signal to a process