使用PHP重命名JSON子键

<?php
$jsonString = '{"name": "John", "age": 30, "city": "New York"}';

// 将JSON字符串解析为PHP数组
$array = json_decode($jsonString, true);

// 重命名键名
$array['fullName'] = $array['name'];
unset($array['name']);

// 将PHP数组转换回JSON字符串
$newJsonString = json_encode($array);

echo $newJsonString;
?>

{"fullName":"John","age":30,"city":"New York"}

if (isset($array['name'])) {
    $array['fullName'] = $array['name'];
    unset($array['name']);
}

$array = json_decode($jsonString, true);
if (!is_array($array)) {
    throw new Exception("Invalid JSON format");
}

$newKey = preg_replace('/[^a-zA-Z0-9_]/', '_', $oldKey);
$array[$newKey] = $array[$oldKey];
unset($array[$oldKey]);