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PHP. Руководство по PHP. 2005

POSIX FunctionsПред.

След.

CVII. POSIX Functions

Введение

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 PHP 3 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.

Внимание
- Sensitive data can be retrieved with the POSIX functions, e.g. posix_getpwnam() and friends. None of the POSIX function perform any kind of access checking when safe mode is enabled. It's therefore strongly advised to disable the POSIX extension at all (use --disable-posix in your configure line) if you're operating in such an environment.

Замечание:Для Windows-платформ

это расширение недоступно.

Установка

POSIX functions are enabled by default. You can disable POSIX-like functions with --disable-posix.

Предопределенные константы

-Перечисленные ниже константы определены данным расширением и могут быть

доступны только в том случае, если PHP был собран с

поддержкой этого расширения или же в том случае, если

данное расширение подгружается во время выполнения.

POSIX_F_OK (integer)

Check whether the file exists.

POSIX_R_OK (integer)

Check whether the file exists and has read permissions.

POSIX_W_OK (integer)

Check whether the file exists and has write permissions.

POSIX_X_OK (integer)

Check whether the file exists and has execute permissions.

POSIX_S_IFBLK (integer)

Block special file

POSIX_S_IFCHR (integer)

Character special file

POSIX_S_IFIFO (integer)

FIFO (named pipe) special file

POSIX_S_IFREG (integer)

Normal file

POSIX_S_IFSOCK (integer)

Socket

Замечание: These constants are available since PHP 5.1.0. Please also note that some of them may not be available in your system.

Смотрите также

The section about Process Control Functions maybe of interest for you.

Содержание

posix_access -- Determine accessibility of a file

posix_ctermid -- Get path name of controlling terminal

posix_get_last_error -- Retrieve the error number set by the last posix function that failed

posix_getcwd -- Pathname of current directory

posix_getegid -- Return the effective group 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_getgrgid -- Return info about a group by group id

posix_getgrnam -- Return info about a group by name

posix_getgroups -- Return the group set of the current process

posix_getlogin -- Return login name

posix_getpgid -- Get process group id for job control

posix_getpgrp -- Return the current process group identifier

posix_getpid -- Return the current process identifier

posix_getppid -- Return the parent process identifier

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 resource limits

posix_getsid -- Get the current sid of the process

posix_getuid -- Return the real user ID of the current process

posix_isatty -- Determine if a file descriptor is an interactive terminal

posix_kill -- Send a signal to a process

posix_mkfifo -- Create a fifo special file (a named pipe)

posix_mknod -- Create a special or ordinary file (POSIX.1)

posix_setegid -- Set the effective GID of the current process

posix_seteuid -- Set the effective UID of the current process

posix_setgid -- Set the GID of the current process

posix_setpgid -- Set process group id for job control

posix_setsid -- Make the current process a session leader

posix_setuid -- Set the UID of the current process

posix_strerror -- Retrieve the system error message associated with the given errno

posix_times -- Get process times

posix_ttyname -- Determine terminal device name

posix_uname -- Get system name

Пред.

Начало

След.

pg_version

Уровень выше

posix_access

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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