POSIX
PHP Manual

Предварително-дефинирани константи

Константите по-долу са дефинирани в това разширение и ще бъдат налични единствено, когато това разширение е компилирано в PHP или пуснато динамично по време на изпълнение.

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

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


POSIX
PHP Manual