<?php
   class Punkt{
      private $x;
      private $y;
      public function __construct($ux, $uy){
         $this->x=$ux;
         $this->y=$uy;
      }
      public function kaugusNullist(){
         return sqrt($this->x*$this->x+$this->y*$this->y);
      }
      public function kysiX(){
         return $this->x;
      }
      public function kysiY(){
         return $this->y;
      }
      public function liiguYles(){
         $this->y=$this->y+1;
      }
      public function naitaAndmed(){
         return "[$this->x, $this->y]";
      }
   }
   
   $p=new Punkt(3, 5);
   echo "sisu: ".$p->kysiY();
   echo " kaugus: ".$p->kaugusNullist();
   // $p->y=7;  //ei saa
   echo $p->naitaAndmed();
//   print_r($p);
?>