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NAME

     vars - Perl pragma to predeclare global variable names
     (obsolete)



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




DESCRIPTION
     NOTE: The functionality provided by this pragma has been
     superseded by `our' declarations, available in Perl v5.6.0
     or later.  See the our entry in the perlfunc manpage.

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

     Unlike pragmas that affect the `$^H' hints variable, the
     `use vars' and `use subs' declarations are not BLOCK-scoped.
     They are thus effective for the entire file in which they
     appear.  You may not rescind such 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 the Pragmatic Modules entry in the perlmodlib manpage.









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Created 1996-2024 by Maxim Chirkov

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