#!/usr/bin/env perl
use strict;
use warnings;

my $host = 'ftp.example.com';
my $user = 'smith';
my $pass = 'secret';

my \                   # <--

my $foo = $host;
print $user, $pass;

__END__
"my" variable $host masks earlier declaration in same scope at ./798335.pl line 11.
"my" variable $user masks earlier declaration in same scope at ./798335.pl line 12.
"my" variable $pass masks earlier declaration in same scope at ./798335.pl line 12.
syntax error at ./798335.pl line 9, near "my \"
Execution of ./798335.pl aborted due to compilation errors.