phpprivateaccess-modifiers

private modifier in php doesn' work like expected

i have this class

class Product {
    public $name;
    private $price2;
    protected $number;

function getNmae() {
    return $this->name;
}

function getPrice() {
    return $this->price2;
}

function getNumber() {
    return $this->number;
}
}

and here I can use private price without any problem?

<?php
include 'oop_test.php';

class Banana extends Product {
   
   
}


$ba = new Banana();
echo $ba->price2 = 2000;

?>

the result like this: enter image description here

I cannot understand how could I assign value to private variable ?

Solution

  • Looks like you've created a property on-the-fly in this case. A reduced sample shows this:

    <?php
class Product {
    private $price2;

    function getPrice() {
        return $this->price2;
    }
}

class Banana extends Product {}


$ba = new Banana();
$ba->price2 = 2000;

echo 'On the fly property: ' . $ba->price2;
echo 'Private property: ' . $ba->getPrice();

    That code prints 2000 for the property price2, but nothing is returned from getPrice - so you haven't really written the property price2 on the Product class, but created a new one within the Banana class.

    The "original" property from the Product class is not involved here, as it is a private property and thus not available in the Banana class after all.