[Aen]

I'm not a programmer but a job at hand requires me to build something like a shopping cart with Ajax so I read some tutorials and got my hands dirty with Prototype.

Nothing wrong with the JS but the PHP that is returning the results seems to be written in PHP5 so it doesn't work on my server (which has PHP4).

PHP Code:

<?php
session_start();

class Shopping_Cart {

    private $cart;

    function __construct($cart="") {
        $this->cart = $cart;
    }

    function getCart() {
        return $this->cart;
    }
   
    function addToCart($item) {
        if(isset($this->cart[$item])) {
            $this->cart[$item]++;
        } else {
            $this->cart[$item] = 1;
        }      
    }

    function deleteFromCart($item) {
        if(isset($this->cart[$item])) {
            $this->cart[$item]--;
            if($this->cart[$item] == 0) {
                unset($this->cart[$item]);
            }
        }
    }
   
}

$items = $_SESSION["cart"];

// Retrieve the parameters
$task = $_GET['task'];
$item = $_GET['item'];

if ($task == "add") {

   $cart->addToCart($item);
   $_SESSION["cart"] = $cart->getCart();
   echo "item added!";
   
} else {

   $cart->deleteFromCart($item);
   echo "item deleted!";
   
}
?>

The error displayed:

Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /pathtomyscript/managecart.php on line 6

Line 6 is where it says private $cart

I hope someone can be kind enough to show me how to turn the class into PHP4 code.

[WeeJames]

Change that line to

var $cart;

[freelancr]

From what i've heard about the differences between php4 and php5 is that php5 is more object orientated, so the whole lot may need rewriting or you could move to a different host that supports php5.

[Cborrow]

You will probaly also need to change

PHP Code:

function __construct 


to

PHP Code:

function Shopping_Cart 


[Aen]

Thanks guys,

changing private to var and using the class name instead of __construct did the trick.