balance . '
'; // Ovako pristupamo vrednosti balance 'pravimo referencu' } public function Withdraw($amount) { if ($this->balance < $amount) { echo 'Not enough money
'; } else { $this->balance = $this->balance - $amount; } } } //nova instanca klase $ba = new BankAccount; echo $ba->DisplayBalance(); $ba->Withdraw(50); echo $ba->DisplayBalance();