PHP用括号合并JSON

Question

我有这个 JSON 文件：

{"customers": [{"Name": "John Doe", "E-mail": "johndoe@mail.com"}]}

我有这个 PHP 代码：

$customers_file = fopen("customers.json", "r");
$customers = json_decode(fread($customers_file ,filesize("customers.json")), true);
fclose($customers_file);

$customer = array("Name" => "Jane Doe", "E-mail" => "janedoe@mail.com");
        
$customers["customers"] += $customer;

$customers_file = fopen("customers.json", "w");
$customers = fwrite($customers_file, json_encode($customers));
fclose($customers_file);

然后JSON文件转入：

{"customers": [{"Name": "John Doe", "E-mail": "johndoe@mail.com"}, "Name": "Jane Doe", "E-mail": "janedoe@mail.com"]}

有没有办法得到：

{"customers": [{"Name": "John Doe", "E-mail": "johndoe@mail.com"}, {"Name": "Jane Doe", "E-mail": "janedoe@mail.com"}]}

Answer 1

当你添加新项目时

$customers["customers"] += $customer;

这是在错误级别添加新数组数据，您需要将其添加到客户数组中（使用[]）...

$customers["customers"][] = $customer;

您还可以查看 file_get_contents() 和 file_put_contents() 以减少 fopen()...fclose() 样板代码。