Cannot send SMS through PHP API when hosted on OpenShift by Redhat - php

Question

I have the following script which I used to send mobile verification sms through a third party sms gateway.
<?
$code = rand(100000, 999999);
$mobilenum = "[phone]";
$data = '{"accountId": "xxxxxxxxxx","apiKey": "xxxxxxxxx","dndType": "transactional","smsType":"normal","senderId": "xxxxxx","to": "' . $mobilenum . '","templateId": "xxxxxxxx","placeholders": {"code": "' . $code . '"}}';
// Create a curl handle to domain 2
$url = "https://api.smsowl.in/v1/sms";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, false);
//we want to get result as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//if servers support is and you want result faster, allow compressed response
//curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
"Content-type: application/json"
));
//configure a POST request with some options
curl_setopt($ch, CURLOPT_POST, true);
//put data to send
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
echo "status code :" . $status;
//execute request
$result = curl_exec($ch);
curl_close($ch);
//show response form domain 2 to client if needed
//echo $code;
//print_r(apache_response_headers());
?>
The script used to work fine when it was hosted on hostgator server 2 months ago. But recently I started working on the application again and hosted it on OpenShift by RedHat since the hostgator service period ended. This script doesn;t work there. status code returns 0. curl_error() returns null and $result also returns null.
Please help.