How to use Apple Push Notifications if you can't use port 2195?

In order to send the notifications to the device need to enable 2195 port in the firewall. For security reasons some organizations disabling these ports in the firewall. 2196 port is used for feedback services and this port also should open in the firewall. Without opening these ports messages cannot deliver to APNS.

I believe the following is what you are looking for

$url = 'https://gateway.sandbox.push.apple.com:2195';
$cert = 'AppCert.pem';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/json"));
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_SSLCERT, $cert);
curl_setopt($ch, CURLOPT_SSLCERTPASSWD, "passphrase");
curl_setopt($ch, CURLOPT_POSTFIELDS, '{"device_tokens": ["458e5939b2xxxxxxxxxxx3"], "aps": {"alert": "test message one!"}}');

$curl_scraped_page = curl_exec($ch);

more information can be found here: Apple push notification with cURL