(PHP 3 >= 3.0.13, PHP 4, PHP 5)
Create a fifo special file (a named pipe)
( 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
Returns TRUE on success or FALSE on failure.
Note: When safe mode is enabled, PHP checks whether
the directory in which you are about to operate has the same UID (owner) as the
script that is being executed.