php how to access object array

Question

How to access the item array from the following object array

Cart66Cart Object
(
[_items:Cart66Cart:private] => Array
    (
        [2] => Cart66CartItem Object
            (
                [_productId:Cart66CartItem:private] => 327
                [_quantity:Cart66CartItem:private] => 3
                [_optionInfo:Cart66CartItem:private] => 
                [_priceDifference:Cart66CartItem:private] => 0
                [_customFieldInfo:Cart66CartItem:private] => 
                [_productUrl:Cart66CartItem:private] => http://localhost/odesk/cart66/fran-wilson-aloe-lip-care/
                [_formEntryIds:Cart66CartItem:private] => Array
                    (
                    )

            )

        [3] => Cart66CartItem Object
            (
                [_productId:Cart66CartItem:private] => 368
                [_quantity:Cart66CartItem:private] => 2
                [_optionInfo:Cart66CartItem:private] => 
                [_priceDifference:Cart66CartItem:private] => 0
                [_customFieldInfo:Cart66CartItem:private] => 
                [_productUrl:Cart66CartItem:private] => http://localhost/odesk/cart66/beauty-strokes-basic-shadow-brush/
                [_formEntryIds:Cart66CartItem:private] => Array
                    (
                    )

            )

    )

[_promotion:Cart66Cart:private] => 
[_promoStatus:Cart66Cart:private] => 0
[_shippingMethodId:Cart66Cart:private] => 13
[_liveRates:Cart66Cart:private] => Cart66LiveRates Object
    (
        [toZip] => 
        [weight] => 
        [rates] => Array
            (
            )

        [_toCountryCode:protected] => 
    )

)

Is it possible for you to add a public getItems() function into the Cart class? — gunnx
– gunnx, Commented May 10, 2012 at 14:38
Are you asking, "How do I access a private/protected object property?" -or- "How do I make an object act like an array?" — user895378
– user895378, Commented May 10, 2012 at 14:54

score 4 · Accepted Answer · 2012-05-10 14:42:38Z

4

If you must access a private/protected class property you can simply use the magic __get method. Reflection would be way overboard in this case. Whether or not it makes good design sense to use the magic methods in this case depends on your situation, though.

class MyClass
{
    private $_items;

    public function __get($prop)
    {
        if ($prop == '_items') {
            return $this->_items;
        }
        throw new OutOfBoundsException;
    }
}

UPDATE

After re-reading it seems you simply want your object to behave like an array. To do this you'll need to implement ArrayAccess and point the relevant methods to the private $_items property.

class MyClass implements ArrayAccess
{
    private $_items = array();

    public function __construct() {
        $this->_items = array(
            "one"   => 1,
            "two"   => 2,
            "three" => 3,
        );
    }
    public function offsetSet($offset, $value) {
        if (is_null($offset)) {
            $this->_items[] = $value;
        } else {
            $this->_items[$offset] = $value;
        }
    }
    public function offsetExists($offset) {
        return isset($this->_items[$offset]);
    }
    public function offsetUnset($offset) {
        unset($this->_items[$offset]);
    }
    public function offsetGet($offset) {
        return isset($this->_items[$offset]) ? $this->_items[$offset] : null;
    }
}

And finally, PHP comes with a built-in ArrayObject class that will make an object behave very much like an array. You could always use that and point the relevent methods at a private $_items property.

edited May 10, 2012 at 14:42

answered May 10, 2012 at 14:35

user895378

Sign up to request clarification or add additional context in comments.

1 Comment

Vlad Balmos Over a year ago

i agree with the overboard statement, but given the fact that we don't know the class interface we should consider it. Thats why reflection is for, i guess. IMHO

Vlad Balmos · Accepted Answer · 2012-05-10 14:36:22Z

1

Something like this maybe:

$object->_items[index]->_productId

But if _items is private you will need a public getter or mess with the Reflection classes. You can set the the private property to be accessible through ReflectionProperty Try this:

    $reflectionObject = new ReflectionObject($yourObject);
    $property = $reflectionObject->getProperty('_items');
    $property->setAccessible(true);
    $items = $property->getValue($yourObject);

edited May 10, 2012 at 14:36

answered May 10, 2012 at 14:27

Vlad Balmos

3,41222 silver badges34 bronze badges

3 Comments

nbhatti2001 Over a year ago

$object->_items should return the items array. but it is not. how I can get item array. Is need to convert it to public

nbhatti2001 Over a year ago

one thing this code was running well on local machine but giving problem on live server. any clue?

Vlad Balmos Over a year ago

what kind of problems? make sure both machines are running the same php version

Robert · Accepted Answer · 2012-07-18 01:45:14Z

0

Try the following:

$object->$first_node->$second_node->$third_node;

edited Jul 18, 2012 at 1:45

Robert

8,7672 gold badges29 silver badges34 bronze badges

answered May 10, 2012 at 14:26

Adam

1,69414 silver badges18 bronze badges

1 Comment

kitti Over a year ago

It's private, so probably not an option.

Collectives™ on Stack Overflow

php how to access object array

3 Answers 3

1 Comment

3 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

3 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related