自己模拟了一点json数据存放在了数据库一个表中大家可以自己模拟

{"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}
{"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}
{"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}

下面我用的pdo执行的php文件

'SET NAMES \'UTF8\''); 

$pdo = new PDO($dsn,$user,$pwd,$options);
$sql="select id,json from ecs_json";
$res=$pdo->query($sql);

$row = $res->fetchAll();
// $row是一个含有json字段键值得二维数组
//打印结果   Array
(
    [0] => Array
        (
            [id] => 1
            [0] => 1
            [json] => {"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}
            [1] => {"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}
        )

    [1] => Array
        (
            [id] => 2
            [0] => 2
            [json] => {"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}
            [1] => {"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}
        )

    [2] => Array
        (
            [id] => 3
            [0] => 3
            [json] => {"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}
            [1] => {"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}
        )

)

//定义一个空数组 把二维组里json解析后放进新数组中
$json = array();

foreach ($row as $k=>$v){
    //json新数组中放入我需要的id 和 json 的二维数组键
    $json[$k]['id'] =$v['id'];
    //把键值为json的json串转换成数组 放到新数组中
    $json[$k]['json'] =json_decode($v['json'],true);
   //转换成数组的json串
   //Array
(
    [3] => Array
        (
            [id] => 3
            [name] => sss
            [type] => 1
            [value] => 1L,4L
        )

)
 
}
echo json_encode($json);
exit;

前端ajax接收输出

        

    
    
     
      
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