constants between

[zang8027]

I got functions.php and addToCart.php.

 

I grab a value being passed and setting it to restID.

 

Then, i pass the value in a function to functions.php and try to set it to a constant. When i try to trace out the value of the constant on addToCart, it says, cannot find constant

 

 

Function.php

<?PHP

//**************Function get shopping cart*********************
function get_shopping_cart($restID)
{


	if (! isset($_SESSION['cart']))
	{
		return new ShoppingCart();
		DEFINE('restIDConst',$restID);
		return 'restIDConst';
	}else{
		return unserialize($_SESSION['cart']);
	}

}?>

 

AddToCart
<?php
require_once '../functions/Functions.php';
$restID = $_REQUEST['restId'];
    	$shopping_cart = get_shopping_cart($restID);


        echo constant('restIDConst');
?>

 

 

isn't the scope global for a constant?

[trq]

return exits the function immediately, returning the expression on the right of itself. Your constant is never defined.

[zang8027]

can i return 2 values out of the same function then?

 

 

[trq]

can i return 2 values out of the same function then?

 

 

 

No. You can however return an array of values.

[zang8027]

Here is why im trying to do this:

 

later on, im using databases to pull info out of and its using the $restID. In my viewCart.php, there is no variable so the stuff being pulled out is not functioning. I want to say, when the session is created, create a constant.

 

Then, when i go to viewCart.php, the constant is set and the database's are using the contstant to pull info out, thus eliminating the error.

 

Later, i can say.. if($restID != restIDConst) { echo "you can not add items from other restaurants to same cart";}

 

 

 

I am hoping this way will work out

[zang8027]

btw, new ShoppingCart() is a class file that is being referenced by required_once.

 

So i need to return a class and a value. Im stumped