use strict; # you must do declare vars before you use it.
local $var;
$var = "perl is";
print "$var";

##</code><code>##

Global symbol "$var" requires explicit package name at - line 3.
Global symbol "$var" requires explicit package name at - line 4.
Global symbol "$var" requires explicit package name at - line 5.
Execution of - aborted due to compilation errors.