posix_mknod
(PHP 5 >= 5.1.0, PHP 7)
posix_mknod — Create a special or ordinary file (POSIX.1)
Description
bool posix_mknod ( string $pathname , int $mode [, int $major = 0 [, int $minor = 0 ]] )Creates a special or ordinary file.
Parameters
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.
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()));
}
?>See Also
- posix_mkfifo() - Create a fifo special file (a named pipe)
← posix_mkfifo
posix_setegid →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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