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    posix_mknod

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    posix_mknod — Create a special or ordinary file (POSIX.1)

    说明

    posix_mknod(
        string $filename,
        int $flags,
        int $major = 0,
        int $minor = 0
    ): bool

    Creates a special or ordinary file.

    参数

    filename

    The file to create

    flags

    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。

    示例

    示例 #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

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