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

(PHP 4, PHP 5, PHP 7) Return the current process identifier

(PHP 4, PHP 5, PHP 7) Return info about a user by username

(PHP 4, PHP 5, PHP 7) Get process times array

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

(PHP 4, PHP 5, PHP 7) Determine if a file descriptor is an interactive terminal

(PHP 4, PHP 5, PHP 7) Return login name string

(PHP 4, PHP 5, PHP 7) Return the parent process identifier

(PHP 4, PHP 5, PHP 7) Return the current process group identifier

(PHP 7) Set system resource limits bool posix_setrlimit