Question

I am creating cookie in first file and wants to update cookie value into second file. I am using following code to read and update the value of cookie. But it is not working.

my $new_value = 'modify';
my %cookies = fetch CGI::Cookie;

foreach (keys %cookies) {
    ### I want to change value of NewCookie
    if($_ eq 'NewCookie')   {
        my $val_cookie = $cookies{'NewCookie'}->value;
        warn "\n value of NewCookie =>" . $val_cookie;
        $cookies{'NewCookie'}->value = $new_value; ###I don't know is it work or not
    }
} 

I am getting this error
“Can’t modify non-lvalue subroutine call at”

Answer 1

I think your problem is in this line of code:

$cookies{'NewCookie'}->value = $new_value;

$cookies{'NewCookie'}->value() is a method. You are trying to assign a value to a method. I am not that familiar with CGI::Cookie, but perhaps you need to change that line of code to look like this:

$cookies{'NewCookie'}->value($new_value);