POSIX_MKFIFO(3) 1 POSIX_MKFIFO(3)posix_mkfifo - Create a fifo special file (a named pipe)SYNOPSIS
bool posix_mkfifo (string $pathname, int $mode)
DESCRIPTION posix_mkfifo(3) creates a special FIFO file which exists in the file system and acts as a bidirectional communication endpoint for pro-
cesses.
PARAMETERS
o $pathname
- Path to the FIFO file.
o $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(3). The permissions of the created file are (mode & ~umask).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
NOTES
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.
PHP Documentation Group POSIX_MKFIFO(3)
Check Out this Related Man Page
POSIX_MKNOD(3) 1 POSIX_MKNOD(3)posix_mknod - Create a special or ordinary file (POSIX.1)SYNOPSIS
bool posix_mknod (string $pathname, int $mode, [int $major], [int $minor])
DESCRIPTION
Creates a special or ordinary file.
PARAMETERS
o $pathname
- The file to create
o $mode
- This parameter is constructed by a bitwise OR between file type (one of the following constants: POSIX_S_IFREG, POSIX_S_IFCHR,
POSIX_S_IFBLK, POSIX_S_IFIFO or POSIX_S_IFSOCK) and permissions.
o $major
- The major device kernel identifier (required to pass when using S_IFCHR or S_IFBLK).
o $minor
- The minor device kernel identifier.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
A posix_mknod(3) example
<?php
$file = '/tmp/tmpfile'; // file name
$type = POSIX_S_IFBLK; // file type
$permissions = 0777; // octal
$major = 1;
$minor = 8; // /dev/random
if (!posix_mknod($file, $type | $permissions, $major, $minor)) {
die('Error ' . posix_get_last_error() . ': ' . posix_strerror(posix_get_last_error()));
}
?>
SEE ALSO posix_mkfifo(3).
PHP Documentation Group POSIX_MKNOD(3)