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

    Description

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

    Creates a special or ordinary file.

    Parameters

    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.

    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;$minor = 8;              // /dev/randomif (!posix_mknod($file, $type | $permissions, $major, $minor)) {    die('Error ' . posix_get_last_error() . ': ' . posix_strerror(posix_get_last_error()));}?>

    See Also