[英]How do I loop through multidimensional JSON array in PHP?
I want to write code to loop through a multidimensional array (4 or 5 deep) and echo all keys and values found and skip empty arrays.我想编写代码来循环遍历多维数组(4 或 5 深)并回显找到的所有键和值并跳过空数组。
$drugs = fopen("http://dgidb.org/api/v2/interactions.json?drugs=FICLATUZUMAB", "r");
$json_drugs = stream_get_contents($drugs);
fclose($drugs);
$data_drugs = json_decode($json_drugs,true);
foreach ($data_drugs as $key => $value)
...
Anyone, anyone, Ferris?任何人,任何人,费里斯?
Your $data_drugs is no longer a json, after json_decode is an associative array.在 json_decode 是关联数组之后,您的 $data_drugs 不再是 json。
You don't need any loop to see keys and values你不需要任何循环来查看键和值
$data_drugs = json_decode($json_drugs,true);
print_r($data_drugs);
/* or if you don't like inline */
echo'<pre>';
print_r($data_drugs);
echo'</pre>';
You can use var_dump($data_drugs)
- keys and values with types, probably you don't need this您可以使用
var_dump($data_drugs)
- 带有类型的键和值,可能您不需要这个
But if you want to display keys and values more ...fancy use a recursive function但是如果你想更多地显示键和值......花式使用递归函数
function show($x){
foreach($x as $key=>$val){
echo"<p>$key : ";
if(is_array($val)){ echo". . ."; show($val);}
else{ echo"$val</p>";}}}
show($data_drugs);
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