posix_mknod
Create a special or ordinary file (POSIX.1)
Description
bool posix_mknod(
string $filename,
int $flags,
int $major = 0,
int $minor = 0
)
Parameters
-
filename
-
The file to create
-
flags
-
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.
-
major
-
The major device kernel identifier (required to pass when using
S_IFCHR or S_IFBLK).
-
minor
-
The minor device kernel identifier.
Return Values
Returns true on success or false on failure.
Examples
Example #1 A posix_mknod 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()));
}
?>