Registration page

$da = array("method" => "createAddress");
        $da_string = json_encode($da);

        $kech2 = curl_init('http://localhost:8070/json_rpc');
        curl_setopt($kech2, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($kech2, CURLOPT_POSTFIELDS, $da_string);
        curl_setopt($kech2, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($kech2, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json',
        'Content-Length: ' . strlen($da_string))
        );

        $result2 = curl_exec($kech2);
        $det1 = json_decode($result2, true);
        $address = $det1['result']['address'];
        $servername = "localhost";
        $username = "user";
        $password = "pass";
        $dbname = "database";

        // Create connection
        $conn = new mysqli($servername, $username, $password, $dbname);
        // Check connection
        if ($conn->connect_error) {
        die("Connection failed: " . $conn->connect_error);
        }

        $sql = "update strm_members set address='$address' where username='$newuser'";

        if ($conn->query($sql) === TRUE) {
        echo "New record created successfully";
        } else {
            echo "Error: " . $sql . "<br>" . $conn->error;
        }

        $conn->close();