[PHP] pobierz, plaintext 
class klasa{
 
    public $a;
    public $b;
 
    public function pole($x, $y)
    {
        $this->a->$x;
        $this->b->$y;
    }
    public function pokaz()
    {
        $inna = $this->a * $this->b;
        return $inna;
    }
 
 
}
 
$var = new klasa();
$var -> pole(2,2);
 
echo $var->pokaz();
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
$this->a->$x;
[PHP] pobierz, plaintext