Re: Use of uninitialized value in concatenation (.) or string

[KPeter0314]

Japhy is right, initialization is the key.

I sheepishly admit I come from the old school where declaring variables is necessary. A sideline from starting as a COBOL, RPG, and Transact programmer. It became a habit and use strict; requires it. See Perldoc strict for more info.

This will get you there:

use vars qw($OURVAR) = ();

Add other variables inside the parens to initialize them too.

-Kurt

[P0w3rK!d]

Read the code again. use strict; is everywhere.
Thanks :)

[KPeter0314]

What is meant is that use strict; requires that variables be initialized.

To quote from the perldoc:strict where strict vars is implied by not specifying what to be strict about:

     "strict vars"
           This generates a compile-time error if you access a
           variable that wasn't declared via "our" or "use vars",
           localized via "my()", or wasn't fully qualified.

The use vars qw($OURVAR) = (); pragma actually declares the variable $OURVAR and initializes it to a known null value instead of leaving it uninitialized. Perl cares about the difference.

-Kurt