Aurelia PHP Post请求为空$ _POST

Question

I'm having trouble making POST requests to a server, my data is not send back to me.

I have a very simple PHP script:

Server script

<?php
   header('Access-Control-Allow-Origin: *');
   header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept");

   echo json_encode("{user-id:" . $_POST["user_id"] . "}");
 ?> 

I want to make a POST request to this script, and get some JSON data as response.

---

Working request

If I make a POST request from HTML, this works perfectly:

<form method="post" action="http://url/post.php">
  <input type="hidden" name="user_id" value="123" />
  <button>Go to user 123</button>
</form>

This also works:

$.post( "url/post.php", this.data)
  .done(function( data ) {
    console.log( data );
  });

Response

"{user-id:123}"

---

---

Not working script (desire): Aurelia Fetch Client (JS2016)

submit(){
    let comment = { user_id: "234" };
    this.http.fetch('post.php', {
      method: 'post',
      body: json(comment)
    })
      .then(response => response.json())
      .then(data => console.log(data));
}

Fetch client configuration

config
  .useStandardConfiguration()
  .withBaseUrl('url')
  .withDefaults({
    mode: 'cors',
    headers: {
      'Accept': 'application/json'
    }
  });
});

Response

{user-id:}

---

php alternative

I've tried to see what's inside the array in PHP, but I got the same result using implode :

echo json_encode("{user-id:" . (string)implode(" ",$_POST) . "}");

The question

It looks like Aurelia does not post the data the right way. Do I make a mistake here, or is it some configuration setting I'm not aware of?

Answer 1

Instead of "_POST["user_I'd"]" do this

$input = file_get_contents('php://input');
$input = json_decode($input);
//access user_id like this:
$input->{'user_id'}