# phpman > man > vars(3perl)

## NAME
    vars - Perl pragma to predeclare global variable names

## SYNOPSIS
        use vars qw($frob @mung %seen);

## DESCRIPTION
    NOTE: For use with variables in the current package for a single scope, the functionality
    provided by this pragma has been superseded by "our" declarations, available in Perl v5.6.0 or
    later, and use of this pragma is discouraged. See "our" in perlfunc.

    This pragma will predeclare all the variables whose names are in the list, allowing you to use
    them under "use strict", and disabling any typo warnings for them.

    Unlike pragmas that affect the $^H hints variable, the "use vars" and "use subs" declarations
    are not lexically scoped to the block they appear in: they affect the entire package in which
    they appear. It is not possible to rescind these declarations with "no vars" or "no subs".

    Packages such as the AutoLoader and SelfLoader that delay loading of subroutines within packages
    can create problems with package lexicals defined using "my()". While the vars pragma cannot
    duplicate the effect of package lexicals (total transparency outside of the package), it can act
    as an acceptable substitute by pre-declaring global symbols, ensuring their availability to the
    later-loaded routines.

    See "Pragmatic Modules" in perlmodlib.