Copying html-tags from one table to another (yii2, mysql)

I need to copy description of the product from one table to another, everything works fine until the <img src="url" width="50%" height="50%" /> tag appears in the description. I have a script that copying descriptions of product one by one, with this script in cycle:

$rowParse = Parsing::find()->where(['art_post' => $value])->one();
$desc = $rowParse->description;
Yii::$app->db->createCommand("UPDATE `products` SET `description`=:desc WHERE `id_post`=:id && `art_post`=:art")
->bindValues([':desc'=>$desc, ':id'=>$id_post, ':art'=>$art_post])->execute();

If I do copying description of single product it works as needed – tag inserts with his attributes, but if i do, for example, 100 products in cycle, attributes width and height just disappears and it inserts just like <img src="url" />

Insertion of all other html-tags like span, strong, td, tr, p works normal.

I’m new to programming world, so I need help of big guys 😀
Thank you in advance