这是我的JSON
[
{
"activity_code":"1",
"activity_name":"FOOTBALL"
},
{
"activity_code":"2",
"activity_name":"CRICKET"
}
]
我需要更新到{"activity_code":"1","activity_name":"FOOTBALL"}{"activity_code":"1","activity_name":"TENNIS"}activity_code
如何在PHP中实现这一点？
首先，您需要对其进行解码：
$jsonString = file_get_contents('jsonFile.json');
$data = json_decode($jsonString, true);
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";
}
}
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);
