Send and Receive JSON using an https curl_exec call in PHP - php

Question

I'm trying to make a curl call using PHP. My project has a flow like this
I redirect user to the server.
User uses the services and the server redirects him to a page on my application.
I would like to make a server to server call at this point to verify certain details.
Point to be noted - I post JSON data as well as receive JSON data as response.
I have tried this. I am able to send data but don't get any response.
Is this correct?
Please help!
$data = array("One" => "Onedata", "Two" => "Twodata");
$JsonData = json_encode($data);
$ch = curl_init('https://exampleurl');
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $JsonData);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Content-Length: ' . strlen($JsonData))
);
$result = curl_exec($ch);

Answer 1

As you mention in the comment:
The problem is with SSL verification of the host. It takes some effort (see http://unitstep.net/blog/2009/05/05/using-curl-in-php-to-access-https-ssltls-protected-sites/) to setup SSL correctly, so a workaround is to add the following two options:
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);

Answer 2

Try to use the below code which works for me. and make sure the json_url is correct. When you run it on the browser you should get an output. Before try it using CURL, run in on the browser and see whether you get the output you want.
$json_url ='https://exampleurl';
// Initializing curl
$ch = curl_init( $json_url );
// Configuring curl options
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array('Content-type: application/json')
);
// Setting curl options
curl_setopt_array( $ch, $options );
// Getting results
$results = curl_exec($ch); // Getting jSON result string
$json_decoded = json_decode($results);