Datas are different in Firebase Database but same in Table View

I make an app with Fiebase and Swift. Firstly, I can upload the URL and the name of the website. Then the name will be displayed on the cell. When I click the cell, I can see the website page. My problem is when I click every cell, it is the same website. But the URL I uploaded to Firebase is different. Code in the website page:

  @IBOutlet weak var webView: UIWebView!
    var web = [Web]()
    var dataBaseRef: DatabaseReference! {
        return Database.database().reference()
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        dataBaseRef.child("webs").observe(.value, with: { (snapshot) in
            var results = [Web]()
            for user in snapshot.children {
                let user = Web(snapshot: user as! DataSnapshot)
                if user.webName != user.webUrl {
                    results.append(user)
                    let url = URL (string: user.webUrl as String)
                   
                    let requestObj = URLRequest(url: url!)
                    self.webView.loadRequest(requestObj)
                } 
            }
          })
        }                

Please help me to see what's the mistakes in the code. Thanks.