posix_mkfifo

(PHP 3>= 3.0.13, PHP 4 )

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

Description

bool posix_mkfifo ( string pathname, int mode)

posix_mkfifo() creates a special FIFO file which exists in the file system and acts as a bidirectional communication endpoint for processes.

The second parameter mode has to be given in octal notation (e.g. 0644). The permission of the newly created FIFO also depends on the setting of the current umask(). The permissions of the created file are (mode & ~umask).

注: 安全模式開啟,PHP會檢查執行的腳本和 要操作的檔案或目錄是否有相同的UID(擁有者)