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XLVIII. POSIX functions

This module contains an interface to those functions defined in the IEEE 1003.1 (POSIX.1) standards document which are not accessible through other means. POSIX.1 for example defined the open(), read(), write() and close() functions, too, which traditionally have been part of PHP3 for a long time. Some more system specific functions have not been available before, though, and this module tries to remedy this by providing easy access to these functions.

Table of Contents
posix_kill — Send a signal to a process
posix_getpid — Return the current process identifier
posix_getppid — Return the parent process identifier
posix_getuid — Return the real user ID of the current process
posix_geteuid — Return the effective user ID of the current process
posix_getgid — Return the real group ID of the current process
posix_getegid — Return the effective group ID of the current process
posix_setuid — Set the effective UID of the current process
posix_setgid — Set the effective GID of the current process
posix_getgroups — Return the group set of the current process
posix_getlogin — Return login name
posix_getpgrp — Return the current process group identifier
posix_setsid — Make the current process a session leader
posix_setpgid — set process group id for job control
posix_getpgid — Get process group id for job control
posix_getsid — Get the current sid of the process
posix_uname — Get system name
posix_times — Get process times
posix_ctermid — Get path name of controlling terminal
posix_ttyname — Determine terminal device name
posix_isatty — Determine if a file descriptor is an interactive terminal
posix_getcwd — Pathname of current directory
posix_mkfifo — Create a fifo special file (a named pipe)
posix_getgrnam — Return info about a group by name
posix_getgrgid — Return info about a group by group id
posix_getpwnam — Return info about a user by username
posix_getpwuid — Return info about a user by user id
posix_getrlimit — Return info about system ressource limits
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