I don't know if this is the right thing to do. But I'm lookig for tutorials/articles on using objects instead of global variables to store state. For eg.

package something
# some code here... 
# that generates errors and uses
# something::errors to track errors. 


package something::errors
sub new {
    my ($this) = @_;
    bless $this;
    return $this; 
}
sub setErrors{ 
    my ($this, @errors) = @_;
    $this->{errors} = \@errors;
}
sub getErrors{
    my ($this) = @_;
    return $this->{errors};         
} 

Is this better than using global varibles? Any down-sides to this? Any approach which might be better?

Thanks.