PHP cURL, POST JSON

Question

I need to POST the following JSON code, but for some reason it is not working. Below is the code that I have.

$fieldString = \"395609399\";
//the curl reques         


        

Answer 1

I had issues sending JSON via cURL, and the problem was that I was not explicitly setting the content length in the header.

So the Header should be:

curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Content-Length: ' . strlen($json)));