使用 PHP 在 JSON 嵌套数组中处理 JSON 嵌套数组中的项目
[英]Process item in a JSON nested array in a JSON nested array using PHP
问题描述
Note that this is similar to Processing Multidimensional JSON Array with PHP , only with one caviot.
请注意，这类似于Processing Multidimensional JSON Array with PHP ，只有一个 caviot。
I have a JSON with a few arrays from the following taken from Airtable (URLs censored)我有一个 JSON，其中有几个 arrays 来自 Airtable（经过审查的网址）
{
"records": [
{
"id": "RECORD_ID",
"fields": {
"Name": "Setsuna Meioh",
"Birthday": "2020-10-29",
"Gender": "Female",
"Series": "Sailor Moon",
"Picture": [
{
"id": "this_is_id1",
"url": "http://IMAGE.URL",
"filename": "IMAGE_FILENAME",
"size": 97060,
"type": "image/png",
"thumbnails": {
"small": {
"url": "https://dl.airtable.com/THUMBNAIL_SMAL_URL",
"width": 34,
"height": 36
},
"large": {
"url": "https://dl.airtable.com/THUMBNAIL_LARGE_URL",
"width": 295,
"height": 317
},
"full": {
"url": "https://dl.airtable.com/THUMBNAIL_FULL_URL",
"width": 3000,
"height": 3000
}
}
}
]
}
},
{
"id": "RECORD_ID2",
"fields": {
"Name": "Rin Hoshizora",
"Birthday": "2020-11-01",
"Gender": "Female",
"Series": "Love Live (School Idol Project)",
"Picture": [
{
"id": "this_is_id2",
"url": "http://IMAGE.URL",
"filename": "IMAGE_FILENAME",
"size": 131749,
"type": "image/png",
"thumbnails": {
"small": {
"url": "https://dl.airtable.com/THUMBNAIL_SMAL_URL",
"width": 34,
"height": 36
},
"large": {
"url": "https://dl.airtable.com/THUMBNAIL_LARGE_URL",
"width": 295,
"height": 317
},
"full": {
"url": "https://dl.airtable.com/THUMBNAIL_FULL_URL",
"width": 3000,
"height": 3000
}
}
}
]
}
}
]
}
I'm trying to access the url item in a Picture array, and I already have the jsonDecode method already set up from a cURL response.我正在尝试访问图片数组中的url项目，并且我已经从 cURL 响应设置了jsonDecode方法。
Now, I already know how to use the brackets [] when it's accessing a array (as shown on the link above), but the problem is, there is another array in a array.现在，我已经知道如何在访问数组时使用括号[] （如上面的链接所示），但问题是，数组中还有另一个数组。
What I did was using a longer string to get to a array.我所做的是使用更长的字符串来获取数组。
echo $data->records[0]->fields->Picture[0]->thumbnails->small->url;
I tried that, but unfortunately came out nothing.我试过了，但不幸的是什么都没有。 Then I tried another method below然后我尝试了下面的另一种方法
$Image1Base = $data->records[0]->fields->Picture[0];
$Image1URL = $Image1Base->url;
// then the echo
echo $Image1URL
Came out nothing either.也什么都没出来。 Is there something missing?有什么东西不见了吗？
1 个解决方案
解决方案1
0 2020-10-26 09:07:50
It works.有用。
Check if there are other errors.检查是否有其他错误。
Whether some expected structure does not exist in the real data.一些预期的结构是否在真实数据中不存在。
% cat test4.php %猫测试4.php
<?php
$jsonStr =
'{
"records": [
{
"id": "RECORD_ID",
"fields": {
"Name": "Setsuna Meioh",
"Birthday": "2020-10-29",
"Gender": "Female",
"Series": "Sailor Moon",
"Picture": [
{
"id": "this_is_id1",
"url": "http://IMAGE.URL",
"filename": "IMAGE_FILENAME",
"size": 97060,
"type": "image/png",
"thumbnails": {
"small": {
"url": "https://dl.airtable.com/THUMBNAIL_SMAL_URL",
"width": 34,
"height": 36
},
"large": {
"url": "https://dl.airtable.com/THUMBNAIL_LARGE_URL",
"width": 295,
"height": 317
},
"full": {
"url": "https://dl.airtable.com/THUMBNAIL_FULL_URL",
"width": 3000,
"height": 3000
}
}
}
]
}
},
{
"id": "RECORD_ID2",
"fields": {
"Name": "Rin Hoshizora",
"Birthday": "2020-11-01",
"Gender": "Female",
"Series": "Love Live (School Idol Project)",
"Picture": [
{
"id": "this_is_id2",
"url": "http://IMAGE.URL",
"filename": "IMAGE_FILENAME",
"size": 131749,
"type": "image/png",
"thumbnails": {
"small": {
"url": "https://dl.airtable.com/THUMBNAIL_SMAL_URL",
"width": 34,
"height": 36
},
"large": {
"url": "https://dl.airtable.com/THUMBNAIL_LARGE_URL",
"width": 295,
"height": 317
},
"full": {
"url": "https://dl.airtable.com/THUMBNAIL_FULL_URL",
"width": 3000,
"height": 3000
}
}
}
]
}
}
]
}';
$data = json_decode($jsonStr);
$Image1Base = $data->records[0]->fields->Picture[0];
$Image1URL = $Image1Base->url;
var_dump($Image1URL);
% php -S localhost:8001 % php -S localhost:8001
view-source:http://localhost:8001/test4.php
string(16) "http://IMAGE.URL"
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