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)