Cannot execute database statement from another php file using include - php

Question

What I'm doing wrong after adding class define to StoreUser.php file and calling it from store.php file because it doesn't work any moore? It worked fine inside file StoreUser.php without class define and function see below.
$dbhost = "localhost";
$dbname = "riskinarviointilomake";
$dbuser = "root";
$dbpass = "";
//private $email;
if(isset($_GET["email"])){
$conn = new mysqli($dbhost, $dbuser, $dbpass, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
if (!( $stmt = $conn->prepare("INSERT INTO users(unique_id,email,
encrypted_password) VALUES(?,?,?)"))){
echo "Table creation failed: (" . $conn->errno . ") " . $conn->error;
}
$stmt->bind_param('sss', $unique_id,$email,$password);
$unique_id=123457764;
$password="df12467hh";
$result = $stmt->execute();
$stmt->close();
$conn->close();
}
?>
This doesn't work
class StoreUser{
$dbhost = "localhost";
$dbname = "riskinarviointilomake";
$dbuser = "root";
$dbpass = "";
//private $email;
public function store($email){
$conn = new mysqli($dbhost, $dbuser, $dbpass, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
if (!( $stmt = $conn->prepare("INSERT INTO users(unique_id,email, encrypted_password) VALUES(?,?,?)"))){
echo "Table creation failed: (" . $conn->errno . ") " . $conn->error;
}
$stmt->bind_param('sss', $unique_id,$email,$password);
$unique_id=123457764;
$password="df12467hh";
$result = $stmt->execute();
$stmt->close();
$conn->close();
}
}
<?php
include 'StoreTest.php';
if(isset($_GET['email'])){
$email = $_GET['email'];
$store = new StoreTest();
$store->store($email);
}
?>