[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»

[dmitrii_fediuk]

It is similar to:

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• [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/Wishlist/Observer/AddToCart.php on line 79».
• [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».

[dmitrii_fediuk]

My fix

Step 1

Replace the line:

magento/magento2/blob/2.2.2/app/code/Magento/Backend/Block/Menu.php#L390-L390

with the following one:

if ($colBrakes && count($colBrakes) && $colBrakes[$itemPosition]['colbrake'] && $itemPosition != 1) {

Step 2

Replace the line:

magento/magento2/blob/2.2.2/app/code/Magento/Backend/Block/Menu.php#L404-L404

with the following one:

if ($colBrakes && count($colBrakes) && $limit) {