(PHP 4, PHP 5, PHP 7)
posix_mkfifo — Create a fifo special file (a named pipe)
$pathname
, int $mode
) : bool
posix_mkfifo() creates a special
FIFO
file which exists in the file system and acts as
a bidirectional communication endpoint for processes.
pathname
Path to the FIFO
file.
mode
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).
Returns TRUE
on success or FALSE
on failure.
Note: When safe mode is enabled, PHP checks whether the files or directories being operated upon have the same UID (owner) as the script that is being executed.