posix_mknod
(PHP 5 >= 5.1.0)
posix_mknod — Create a special or ordinary file (POSIX.1)
说明
bool posix_mknod ( string $pathname , int $mode [, int $major = 0 [, int $minor = 0 ]] )Creates a special or ordinary file.
参数
- pathname
-
The file to create
- 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.
- major
-
The major device kernel identifier (required to pass when using S_IFCHR or S_IFBLK).
- minor
-
The minor device kernel identifier.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE.
范例
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()));
}
?>
参见
- posix_mkfifo() - Create a fifo special file (a named pipe)
