posix_mknod()

(PHP 5 >= 5.1.0, PHP 7)

Create a special or ordinary file(POSIX.1)

说明

posix_mknod(string $pathname,int $mode[,int $major= 0[,int $minor= 0]]): bool

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

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)