国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

    $fields = M('fields') -> select();
    $aa = json_encode($fields);
    $bb = json_decode($aa);
    
    $bb -> 0;//獲取不到任何數(shù)據(jù)，應該怎么寫呢
    
    print_r($bb);
    結果為：

Array
(

[0] => stdClass Object
    (
        [fields_id] => 1
        [name] => 勘探
    )

[1] => stdClass Object
    (
        [fields_id] => 2
        [name] => 鉆完井
    )

[2] => stdClass Object
    (
        [fields_id] => 3
        [name] => 采油采氣
    )

[3] => stdClass Object
    (
        [fields_id] => 4
        [name] => 油氣儲運
    )

[4] => stdClass Object
    (
        [fields_id] => 5
        [name] => 地面工程
    )

[5] => stdClass Object
    (
        [fields_id] => 6
        [name] => 銷售煉化
    )

[6] => stdClass Object
    (
        [fields_id] => 7
        [name] => 新能源
    )

[7] => stdClass Object
    (
        [fields_id] => 8
        [name] => 綜合
    )

)

How to get the data inside? Ask for a way to write. For example, how to get all the data under [0]? What if we take [name] below [0]
?