Php/docs/function.posix-mknod

• PHP Manual
• POSIX 函数
• Create a special or ordinary file (POSIX.1)

posix_mknod

(PHP 5 >= 5.1.0, PHP 7)

posix_mknod — 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

Example #1 A posix_mknod() example

<?php$file = '/tmp/tmpfile';  // file name$type = POSIX_S_IFBLK;   // file type$permissions = 0777;     // octal$major = 1;$minor = 8;              // /dev/randomif (!posix_mknod($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)