(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) Return info about a user by user id

(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) Return the current process group identifier

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

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

(PHP 4, PHP 5, PHP 7) Set the UID of the current process

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