user.php

<?php

class User
{
    protected $name;
    protected $phone;
    protected $pin;
    protected $balance;

    function __construct($phone)
    {
        $this->phone = $phone;
    }


    //setters and getter
    public function setName($name)
    {
        $this->name = $name;
    }
    public function getName()
    {
        return $this->name;
    }
    public function getPhone()
    {
        return $this->phone;
    }
    public function setPin($pin)
    {
        $this->pin = $pin;
    }
    public function getPin()
    {
        return $this->pin;
    }
    public function setBalance($balance)
    {
        $this->balance = $balance;
    }
    public function getBalance()
    {
        return $this->balance;
    }

    public function register($pdo)
    {
        try {
            //hash pin
            $hashedPin = password_hash($this->getPin(), PASSWORD_DEFAULT);
            $stmt = $pdo->prepare("INSERT INTO user (name, pin, phone, balance) values(?,?,?,?)");
            $stmt->execute([$this->getName(), $hashedPin, $this->getPhone(), $this->getBalance()]);
        } catch (PDOException $e) {
            echo $e->getMessage();
        }
    }
    public function isUserRegistered($pdo)
    {
        $stmt = $pdo->prepare("SELECT * FROM user WHERE phone=?");
        $stmt->execute([$this->getPhone()]);
        if (count($stmt->fetchAll()) > 0) {
            return true;
        } else {
            return false;
        }
    }
    public function readName($pdo)
    {
        $stmt = $pdo->prepare("SELECT * FROM user WHERE phone=?");
        $stmt->execute([$this->getPhone()]);
        $row = $stmt->fetch();
        return $row['name'];
    }
    public function readUserId($pdo)
    {
        $stmt = $pdo->prepare("SELECT uid FROM user where phone=?");
        $stmt->execute([$this->getPhone()]);
        $row = $stmt->fetch();
        return $row['uid'] ?? 'default value';
    }
    public function correctPin($pdo)
    {
    }
    public function checkBalance($pdo)
    {
    }
}