用foreach遍历省市区

用foreach遍历省市区

foreach($arr as $key=>$value){
    echo '<pre>';
    echo '***';
    print_r($value['area_pid']);
    print_r($value['area_name']);
    foreach($value['son'] as $key1=>$value1){
        echo '<pre>';
        echo '+++';
        print_r($value1['area_pid']);
        print_r($value1['area_name']);
        foreach($value1['son'] as $key2=>$value2){
            echo '<pre>';
            echo '---';
            print_r($value2['area_name']);
        }
    }
}