POST request with PHP Curl

gistfile1.php

<?php

$data = file_get_contents('/Users/socana/Desktop/request.txt');

$rsc = curl_init();
curl_setopt($rsc, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
curl_setopt($rsc, CURLOPT_URL, "http://demo.optimizr.eu:8080/OptimizrAnalysis/analyze");
curl_setopt($rsc, CURLOPT_POST, true);
curl_setopt($rsc, CURLOPT_POSTFIELDS, $data);
curl_setopt($rsc, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($rsc);
curl_close($rsc);

print_r(json_decode($result));