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    <head>
        <meta charset="UTF-8">
        <title></title>
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<?php
class BankAccount{
	/**
	 * bank account number
	 * @var string bank account number
	 */
	private $tiliNro;
	/**
	 * total balance
	 * @var float total balance
	 */
	private $balanssi;

	public function lisaa($amount){
		$this->balanssi += $amount;
	}

	public function nosta($amount){
		if($amount > $this->balanssi)
		    die('Not enough money to withdraw');

		$this->balanssi -= $amount;
	}


	public function getBalanssi(){
		return $this->balanssi;
	}


	public function getTiliNro(){
		return $this->tiliNro;
	}


	public function setTiliNro($accountNumber){
		$this->tiliNro = $accountNumber;

	}
    }
    $siirtoSumma = intval($_POST['siirtoSumma']);
    $tilinumeroEka = intval($_POST['tilinumeroEka']);
    $tilinumeroToka = intval($_POST['tilinumeroToka']);

    $tili1 = new Tili();
    $tili2 = new Tili();
    $tili1->setTili(tilinumeroEka);
    $tili1->lisaa(12500);
    $tili1->nosta(siirtoSumma);
    $tili2->setTili(tilinumeroToka);
    $tili2->lisaa(siirtoSumma);


?>

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</html>