How to assign the value in perl

How to assign the value in perl

Getting the User profile Details in response
$response = $client->fql->query( query => 'SELECT name, email, birthday,
username, first_name, last_name, pic FROM user WHERE uid = me()');
After that print the statement like:
print join "\n Name:", sort map { $_->{name} } @$response;
print "</br>\n";
print join "\n Email:", sort map { $_->{email} } @$response;
print "</br>\n";
sort map { $_->{email} } @$response;
I want to assign this to one variable and to compare and check the values.
How to assign the value to the variable and store?