{foreach $areas['province'] as $key=>$value}
{foreach $value['city'] as $key2 => $city}
{/foreach}
{/foreach}
{foreach $areas['province'] as $key=>$value}
{foreach $value['city'] as $key2 => $city}
{foreach $city['county'] as $key3 => $county}
{/foreach}
{/foreach}
{/foreach}