如何正确发送 json object 到 php 后端

Question

While using something like this

"

 Dictionary<string, string> form = new Dictionary<string, string>
  {
      {_metajson, JsonConvert.SerializeObject(metaJson)}
  };
  HttpResponseMessage response = await httpClient.PostAsync(url, new FormUrlEncodedContent(form));

However on the php side of things with $_Request I get the string and all the quotes are turned into " so the json looks like

{"name":"myname"}

Is there a better way to send json to a php backend?

On the PHP end of things I am simply assigning the json which has now lost the quotes and has weird marks with

$json = $_REQUEST["test"];

The json I am sending is in memory, its not saved to a file anywhere. It is very small like shown above and is needed for the purposes of the application I am writing.

Answer 1

Use php://input

php://input is a read-only stream that allows you to read raw data from the request body.

Example:

$json_string = file_get_contents('php://input');

//Converting It to PHP object:

$data = json_decode($json_string );

Answer 2

I was just working with the same problem and here is my solution, it works for me

$data = $_POST['json'] ;
$json = json_decode($data, true);
echo json_encode($json);

afterwards, you can take the $json variable an do whatever you want to do with it

Answer 3

I ended up changing the approach which worked very well

I simply base64 encoded the json to avoid http changing special characters to odd string formats like " to " and what not.

C# side - using this string in the dictionary form

string encodedJson = Convert.ToBase64String(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(metaJson)));

PHP side

$encoded_input  = $_REQUEST["metajson"];

$base64_decoded_input = base64_decode($encoded_input, true);
if (!$base64_decoded_input)
{
    // error out
}
$meta_json = json_encode(json_decode($base64_decoded_input));