如何使用 PHP 更新/编辑 JSON 文件
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How to update/edit a JSON file using PHP
提问by user475464
Here is my JSON
这是我的JSON
[
{
"activity_code":"1",
"activity_name":"FOOTBALL"
},
{
"activity_code":"2",
"activity_name":"CRICKET"
}
]
I need to update {"activity_code":"1","activity_name":"FOOTBALL"}to {"activity_code":"1","activity_name":"TENNIS"}based on activity_code
我需要更新{"activity_code":"1","activity_name":"FOOTBALL"}到{"activity_code":"1","activity_name":"TENNIS"}基于activity_code
How can I achieve this in PHP?
我怎样才能在 PHP 中实现这一点？
回答by Brewal
First, you need to decode it :
首先，您需要对其进行解码：
$jsonString = file_get_contents('jsonFile.json');
$data = json_decode($jsonString, true);
Then change the data :
然后更改数据：
$data[0]['activity_name'] = "TENNIS";
// or if you want to change all entries with activity_code "1"
foreach ($data as $key => $entry) {
if ($entry['activity_code'] == '1') {
$data[$key]['activity_name'] = "TENNIS";
}
}
Then re-encode it and save it back in the file:
然后重新编码并将其保存回文件中：
$newJsonString = json_encode($data);
file_put_contents('jsonFile.json', $newJsonString);
