You need to write me more information.
For example:
I use direct database entry for import
Db::getInstance()->execute('INSERT INTO .....
or, I'm using a database entry
Db::getInstance()->insert('product', ... /* or */ Db::getInstance()->update('product', ...
or, I use the Prestashop function
$product = new Product(); $product->price = $myImport['price']; $product->name = $myImport['product_name']; $product->save(); /* or */ $product = new Product((int)$myImport['id_product']); $product->price = $myImport['price']; $product->name = $myImport['product_name']; $product->update();
etc....
There are many ways to achieve this.