在PHP中使用行分隔的JSON字符串

I am using an API which requires I send it data as new line delimited JSON, for example;

{"id":"67523", "name":"Jason"}
{"id":"69928", "name":"Doug"}

The API accepts single JSON objects, but can accept multiple new line delimited JSON objects in a single batch (more efficient). How do you construct string objects like the above in PHP?

If taking a string like {"id":"67523", "name":"Jason"}, I can json_decode() it to turn it into an associative array (this is accepted by the API endpoint). However, the only way I can see to pass a number of these objects together is within an array, but the API does not accept an array of JSON objects.

JSON does not allow real line-breaks.
As you said API is accepting Single Objects and not accepting an array of JSON objects, the below Code will help you somewhat where each object is given index

{
  0: {
    "id": "67523",
    "name": "Jason"
  },
  1: {
    "id": "69928",
    "name": "Doug"
  }
}

If API really accepts newline delimited objects, and manage objects over json level, try:

$data = '{"id":"67523", "name":"Jason"}'."
".'{"id":"69928", "name":"Doug"}';

In php also you can use new lines just inside string code.