[PHP 7.2] My fix for «Warning: count(): Parameter must be an array or an object that implements Countable in Magento/Wishlist/Observer/AddToCart.php on line 79»

[dmitry_fedyuk (Dmitrii Fediuk)]

It is similar to:

• [PHP 7.2] My fix for «Warning: count(): Parameter must be an array or an object that implements Countable in lib/internal/Magento/Framework/View/Design/Theme/ThemeList.php on line 237».
• [PHP 7.2] My fix for «Warning: count(): Parameter must be an array or an object that implements Countable in Magento/Theme/Block/Html/Topmenu.php on line 241».
• [PHP 7.2] My fix for «Warning: count(): Parameter must be an array or an object that implements Countable in Magento/Backend/Block/Menu.php on line 390».
• [PHP 7.2] My fix for «Warning: sizeof(): Parameter must be an array or an object that implements Countable in app/code/Magento/Sales/view/adminhtml/templates/order/totalbar.phtml on line 10».

[dmitry_fedyuk (Dmitrii Fediuk)]

My fix

Replace the line:

magento/magento2/blob/2.2.2/app/code/Magento/Wishlist/Observer/AddToCart.php#L79-L79

with the following one:

if ($wishlistIds && count($wishlistIds) && $request->getParam('wishlist_next')) {

[Igor_Kogan]

Thank you very match for good fix!