JSON数组中的对象-无法获取多维数组 [英] Objects in JSON array - Can't get multidimenson arrays

问题描述

我有一个带有这样的字符串的JSON文件:

I have a JSON file with a String like this:

[{"Ean":"","Barcode":"010258100139","Bezeichnung":"Alia","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":129.90,"Vk":129.90}]

我尝试使用PHP将其放入数组，以便获取数据:

with PHP I try to get it into arrays so I can get the data:

$jsonarray = json_decode($jsonfile);
$jsonarray = json_decode(json_encode($jsonarray), true);
var_dump( $jsonarray );

我得到的是以下信息:

array (size=3)
   0 => 
   array (size=8)
     'Ean' => string '' (length=0)
     'Barcode' => string '010258100139' (length=12)
     'Bezeichnung' => string 'Alia' (length=4)
     'Bestaende' => 
         array (size=1)
            0 => 
              array (size=5)
                  ...
     'Bestand' => int 1
     'Dispo' => int 0
     'Uvp' => float 129.9
     'Vk' => float 129.9

就这样！我从这里尝试了很多带有嵌套对象的示例. 如果我尝试获取

And thats it! I try many examples from here wit nested objects. If I try to get data like

echo $jsonarray[0]['Barcode'];

我得到的条形码字符串没有问题.但是我无法访问数组(大小= 5)"中的数据. 我尝试了很多事情，例如嵌套的foreach循环，来自这里的函数，例如"object_to_array"，"json_encode2"等等.

I get my Barcode String without problems. But the data in "array (size=5)" I can't access. I try many things like nested foreach loops, functions from here like "object_to_array", "json_encode2" and so on.

有人可以给我提示如何使用它吗?我尝试获得"Menge":1.

Can anybody give me a tip how I can access it? I Try to get ""Menge":1".

先谢谢了. Tyv

推荐答案

您实际上只需要一个json_decode，就像这样:

You really only need one json_decode, like so:

$data = '[{"Ean":"","Barcode":"010258100139","Bezeichnung":"Alia","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":129.90,"Vk":129.90}]';

$jsonarray = json_decode($data,true);

打印出来后，您会得到:

When you print it out, you get:

print_r($jsonarray);// I use print_r as its output looks more like how you use it

Array
(
    [0] => Array
        (
            [Ean] => 
            [Barcode] => 010258100139
            [Bezeichnung] => Alia
            [Bestaende] => Array
                (
                    [0] => Array
                        (
                            [Filiale] => 1
                            [FilialeBez] => Laden
                            [Menge] => 1
                            [Gln] => 
                            [Dispo] => 0
                        )
                )
            [Bestand] => 1
            [Dispo] => 0
            [Uvp] => 129.9
            [Vk] => 129.9
        )
)

因此，从那里，您可以看到如何获取某些数据点.例如，您需要Bestaende的第一个数据数组，因此可以将其抓取为:

So from there, you can see how you can get at certain points of data. For example you wanted Bestaende's first data array, so you would grab it as:

$jsonarray['0']['Bestaende']['0']; // for the whole group
$jsonarray['0']['Bestaende']['0']['Menge']; // for specific items

如果在Bestaende下有多个小组，那么您可以循环进行各自的工作:

If you have multiple groups under Bestaende, then you could loop them doing what you need to do with each:

foreach($jsonarray['0']['Bestaende'] as $idx => $Bestaende) {
    $Bestaende['Menge']; // to use that specific data of that group this loop
}

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