IO - phpMan

NAME
    IO - load various IO modules

SYNOPSIS
       use IO qw(Handle File); # loads IO modules, here IO::Handle, IO::File
       use IO;                 # DEPRECATED

DESCRIPTION
    "IO" provides a simple mechanism to load several of the IO modules in
    one go. The IO modules belonging to the core are:

          IO::Handle
          IO::Seekable
          IO::File
          IO::Pipe
          IO::Socket
          IO::Dir
          IO::Select
          IO::Poll

    Some other IO modules don't belong to the perl core but can be loaded as
    well if they have been installed from CPAN. You can discover which ones
    exist with this query: <https://metacpan.org/search?q=IO%3A%3A>.

    For more information on any of these modules, please see its respective
    documentation.

DEPRECATED
        use IO;                # loads all the modules listed below

    The loaded modules are IO::Handle, IO::Seekable, IO::File, IO::Pipe,
    IO::Socket, IO::Dir. You should instead explicitly import the IO modules
    you want.