php curl post a large json object - php

Question

So, I have a php script which sends a large JSON object and this is the code I am using to do so.
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, array("Content-type: application/json"));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($curl, CURLOPT_VERBOSE, true);
$json_response = curl_exec($curl);
Now when the data is small, the request goes through smoothly. However, when the json object becomes huge it suddenly fails to send the data and instead is shows "Content-Length: 0" in the request header as if it did not include the object.
I am assuming there is a limit to how large the data could be. Is there a way to bypass that?
I have searched for similar issues and I found a solution for sending files. But the object i have here is a result set from the database and therefore I would prefer to keep the file approach as a last resort.
Thanks.

Answer 1

So basically you have the HTTPHEADER already but you're missing the Content-length one try it like so:
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, array( 'Content-Type: application/json', 'Content-length:' . strlen($data)));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($curl, CURLOPT_VERBOSE, true);
$json_response = curl_exec($curl);