my $get_phone="";
 
  if (ref($xml_data->{'mainA'}->{'mainB'}->{'mainC'}) eq 'ARRAY') {
      $get_phone = $xml_data->{'mainA'}->{'mainB'}->{'mainC'}->[0];
    } else {
      $get_phone = $xml_data->{'mainA'}->{'mainB'}->{'mainC'};
    }
     
    $got_phone = $get_phone->{'mainD'}->{'mainE'}->{'mainF'}->{'mainG'};
    
print "<br>**$got_phone**<br>";

# I am getting this Result: **HASH(0xa8f8064)**