如何使用 PHP 向 JSON 对象添加元素？
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How to add element to JSON object using PHP?
提问by sdfgg45
I have this JSON array, and i want to add another value to it using PHP.
我有这个 JSON 数组，我想使用 PHP 向它添加另一个值。
What would be the easiest way to add a ID and Name to this array using PHP.
使用 PHP 向该数组添加 ID 和名称的最简单方法是什么。
[
{
"id":1,
"name":"Charlie"
},
{
"id":2,
"name":"Brown"
},
{
"id":3,
"name":"Subitem",
"children":[
{
"id":4,
"name":"Alfa"
},
{
"id":5,
"name":"Bravo"
}
]
},
{
"id":8,
"name":"James"
}
]
回答by Pupil
Simply, decode it using json_decode()
简单地，使用json_decode()对其进行解码
And append array to resulting array.
并将数组附加到结果数组。
Again encode it using json_encode()
再次使用json_encode()对其进行编码
Complete code:
完整代码：
<?php
$arr = '[
{
"id":1,
"name":"Charlie"
},
{
"id":2,
"name":"Brown"
},
{
"id":3,
"name":"Subitem",
"children":[
{
"id":4,
"name":"Alfa"
},
{
"id":5,
"name":"Bravo"
}
]
},
{
"id":8,
"name":"James"
}
]';
$arr = json_decode($arr, TRUE);
$arr[] = ['id' => '9999', 'name' => 'Name'];
$json = json_encode($arr);
echo '<pre>';
print_r($json);
echo '</pre>';
