Question

我提供的数据只有一行。我有很多不同的“Bestaende”和“Menge”：

[{"Ean":"","Barcode":"010241770148","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90},      
 {"Ean":"","Barcode":"010241770149","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90},
 {"Ean":"","Barcode":"010241770151","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90},
 {"Ean":"","Barcode":"010241770152","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90}]

您所描述的foreach我理解，但它无法按预期工作。

$jsonarray = json_decode($jsonfile,true);
echo 'Array 0 Menge: '.$jsonarray['0']['Bestaende']['0']['Menge'].'<br>'; 
echo 'Array 1 Menge: '.$jsonarray['1']['Bestaende']['0']['Menge'].'<br>'; 
echo 'Array 2 Menge: '.$jsonarray['2']['Bestaende']['0']['Menge'].'<br>'; 
echo 'Array 3 Menge: '.$jsonarray['3']['Bestaende']['0']['Menge'].'<br>';

带出

Array 0 Menge: 1
Array 1 Menge: 1
Array 2 Menge: 1
Array 3 Menge: 1

好。但是当我尝试foreach时（因为我有一个基础数据列表），输出只有一行。我只得到一个条目“1”。没什么。

$x=0;
foreach($jsonarray[$x]['Bestaende'] as $idx => $Bestaende) {
   echo 'Print Menge: ';
   print_r($Bestaende['Menge']); 
 $x++;
}

所以我尝试遍历数组以获取数据。结果是：

Array ( [Filiale] => 1 [FilialeBez] => Laden [Menge] => 1 [Gln] => [Dispo] => 0 )
Print Menge: 1

数组中的数组有问题...是否有更好的方法来获取我想要的数据？

或者我的foreach循环错了？

Answer 1

您只能在仅包含一个项目的$jsonarray[0]['Bestaende']上循环。你应该越过$jsonarray并从那里深入潜水。

foreach($jsonarray as $item) {
    echo 'Print Menge: ';
    print_r($item['Bestaende']['0']['Menge']); 
    // or even dive in deeper
    foreach ($item['Bestaende'] as $bestaende) {
        // .. $bestaende['Menge'];
    }
}

Answer 2

尝试这样

foreach($jsonarray as $k=>$alldata) 
{
   foreach($alldata["Bestaende"] as $idx => $Bestaende) 
   {
       echo '<pre>';
       echo 'Print Menge: '.$Bestaende['Menge'];
       echo '</pre>';
   }
}

Answer 3

Try this code..
$j = '[{"Ean":"","Barcode":"010241770148","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90},      
 {"Ean":"","Barcode":"010241770149","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90},
 {"Ean":"","Barcode":"010241770151","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90},
 {"Ean":"","Barcode":"010241770152","Bezeichnung":"Richard 1516","Bestaende":[{"Filiale":1,"FilialeBez":"Laden","Menge":1,"Gln":null,"Dispo":0}],"Bestand":1,"Dispo":0,"Uvp":269.90,"Vk":269.90}]';

$a = json_decode($j,true);

foreach($a as $key => $value){
    if(!empty($value['Bestaende'])){
        foreach($value['Bestaende'] as $k=>$v){
             echo 'Print Menge: '.(!empty($v['Menge']) ? $v['Menge'] : '').'</br>';
        }
    }
}

数组中的数组 - 无法从JSON字符串

3 个答案: