gistfile1.txt

//open connection
$ch = curl_init();

//set the url, number of POST vars, POST data
$fields = array('data' => $variable);
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt(CURLOPT_HTTPHEADER, array('Content-Type' => 'application/json'));
curl_setopt(CURLOPT_POST, true);
curl_setopt(CURLOPT_POSTFIELDS, $fields );

//execute post
$result = curl_exec($ch);

//close connection
curl_close($ch);