passing variable into class functions and use it

Question

i got one class and i'm trying to implement it into my website, but i'm unable to pass variable into it...

class Order {

   var $totalPrice = null;

   function load() {
      $this->totalPrice = 123;
   }

   function loadByPaymentSessionId($paymentSessionId) {
       $this->totalPrice = 123;
   }
}

$order = new Order();
$order->load();

How can i set $this->totalPrice outside of class?

Pass it through constructor, or create a setTotalPrice method? And please, change this var $totalPrice either by public if you really need it to be or protected — Touki
– Touki, Commented Nov 25, 2013 at 8:49

shanethehat · Accepted Answer · 2013-11-25 09:00:47Z

1

At the moment your property is given public access, so:

$order->totalPrice = 4.65;

Alternatively, if you want the ability to set the price at the point of instantiation you could provide a constructor with an argument:

class Order {

    public $totalPrice;

    public function __construct($totalPrice = null)
    {
        $this->totalPrice = $totalPrice;
    }
}

$order = new Order(4.85);

Or, if you need to perform some kind of logic while the value is set, you could prevent direct access to the class member and provide an accessor method:

class Order {

    private $totalPrice;

    public function setTotalPrice($totalPrice)
    {  
        $this->totalPrice = (float) $totalPrice;
    }
}

edited Nov 25, 2013 at 9:00

answered Nov 25, 2013 at 8:50

shanethehat

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Comments

MeNa · Accepted Answer · 2013-11-25 08:51:35Z

0

The idea is to make $totalPrice private, and set him by function like this:

function load2($newVal) {
      //some validation
      $this->totalPrice = $newVal;
   }

answered Nov 25, 2013 at 8:51

MeNa

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