In more general terms, I typically use something like this to silence those warnings (assuming a value of undef is not an error): 

my $string_var = defined( $input_field ) || '';

# or

if ( ($string_var || '') !~ /some_pattern/ ) {
    ...
}

[download]
If in fact undef is an error I would generally use something along this line: 
croak "HEY! Why am I not defined?" if !defined( $input_field );

[download]

You must always remember that the primary goal is to drain the swamp even when you are hip-deep in alligators.

In reply to Re: Undef and Unitialized Issue by boftx
in thread Undef and Unitialized Issue by Pharazon

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