public mixed HttpQueryString::get ([ string $key [, mixed $type = 0 [, mixed $defval = NULL [, bool $delete = false ]]]] )
Get (part of) the query string. The type parameter is either one of the HttpQueryString::TYPE_* constants or a type abbreviation like "b" for bool, "i" for int, "f" for float, "s" for string, "a" for array and "o" for a stdClass object.
Returns the value of the query string param or the whole query string if no key was specified on success or defval if key does not exist.