Send a notification on iPhone

First of all we need 3 things as mentioned:

1. Our iPhone's device token
2. .pem file for iPhone
3. Its passphrase.

Now use following code:

        $deviceToken = 'enter_your_device_token';
        $passphrase = 'enter_your_passphrase';
        $message = 'enter_your_notification_message';

        $badge = 1;
        $ctx = stream_context_create();
        stream_context_set_option($ctx, 'ssl', 'local_cert', 'path_to_pem_file.pem');
        stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase);

        // Open a connection to the APNS server
        $fp = stream_socket_client(
            'ssl://gateway.sandbox.push.apple.com:2195', $err,
            $errstr, 60, STREAM_CLIENT_CONNECT | STREAM_CLIENT_PERSISTENT, $ctx);
        if (!$fp)
            exit("Failed to connect: $err $errstr" . PHP_EOL);
        echo 'Connected to APNS' . PHP_EOL;

        // Create the payload body
        $body['aps'] = array(
            'alert' => $message,
            'badge' => $badge,
            'sound' => 'newMessage.wav'
        );

        // Encode the payload as JSON
        $payload = json_encode($body);

        // Build the binary notification
        $msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;

        // Send it to the server
        $result = fwrite($fp, $msg, strlen($msg));

        if (!$result)
            echo 'Error, notification not sent' . PHP_EOL;
        else
            echo 'notification sent!' . PHP_EOL;

        // Close the connection to the server
        fclose($fp);

Thanks.