Hi All,

I have the below sample XML dump structure after reading it into XMLSimple:

 

$VAR1 = {
          'Response' => [
                        {
                          'RTAG' => 'closure47',
                          'UUID' => 'Group000',
                          'Group' => [                                                    {
                                       'NAME' => 'null',
                                       'GroupRef' => [
                                                     {
                                                       'GID' => 'Canada'
                                                     },
                                                     {
                                                       'GID' => 'United States'
                                                     }
                                                   ],
                                       'GID' => 'Group000',
                                       'TYPE' => 'SELLFIRM',
                                       'Property' => [
                                                     {
                                                       'VALUE' => 'SELLFIRM'
                                                       'NAME' => 'Level'
                                                     },
                                                     {
                                                       'VALUE' => 'Portfolio Type 1',
                                                       'NAME' => 'Portfolio Type'
                                                     },
............

............

...........

 

The below codes loops through above and  returns the correct  'GID' within the 'Group' nodes:

my $i = 0;
my $j = 0;
foreach $e (@{ $data->{Response} }) {
      for ($i = 0; $i < scalar (@{$e->{Group}}); $i++) { #Loop through the 'Group'
         print "{Group}[$i]->{GID}: ", $e->{Group}[$i]->{GID}, "\n"; # get GID's

      }
}

Im trying to use the above to output the 'GID's within the 'Groupref' nodes, something along the lines of this:

my $i = 0;
my $j = 0;
foreach $e (@{ $data->{Response} }) {
      for ($i = 0; $i < scalar (@{$e->{Group}}); $i++) { #Loop through the 'Group'
         print "{Group}[$i]->{GID}: ", $e->{Group}[$i]->{GID}, "\n"; # get GID's

           for ($j = 0; $j < scalar (@{$e->{Group}->{GroupRef}}); $j++) { #Loop through the 'Group'
                print "{Group}[$i]->{GroupRef}[$j]->{GID}: ", $e->{Group}[$i]->{GroupRef}[$j]->{GID}, "\n"; #'Canada'
           }
      }
}

 

but I get the below error:

{Group}[0]->{GID}: Group000
Can't use an undefined value as an ARRAY reference at testXMLSimple.pl line 51.

Clearly the portion of the for loop  scalar (@{$e->{Group}->{GroupRef}});  ie trying to find the size of the array is causing the issue.

If i replaced the for loop with something like for ($j = 0; $j < 10; $j++)  ... ths would work but obviously as a test, I cant harcode the upper limit to 10!

 

any ideas greatly appreciated?

Kind regards

Satnam

 

Any ideas on how to find the size of the array in the line