Is it possible to set conditions in the return array?

if ($query->num_rows) { return array( 'product_id' => $query->row['product_id'], 'name' => $query->row['name'], 'description' => $query->row['description'], 'meta_title' => $query->row['meta_title'], 'meta_description' => $query->row['meta_description'], 'meta_keyword' => $query->row['meta_keyword'], 'tag' => $query->row['tag'], 'model' => $query->row['model'], 'sku' => $query->row['sku'], 'upc' => $query->row['upc'], 'ean' => $query->row['ean'], 'jan' => $query->row['jan'], 'isbn' => $query->row['isbn'], 'mpn' => $query->row['mpn'], 'location' => $query->row['location'], 'quantity' => $query->row['quantity'], 'stock_status' => $query->row['stock_status'], 'image' => $query->row['image'], 'manufacturer_id' => $query->row['manufacturer_id'], 'manufacturer' => $query->row['manufacturer'], 'price' => ($query->row['discount'] ? $query->row['discount'] : $query->row['price']), 'special' => $query->row['special'], 'reward' => $query->row['reward'], 'points' => $query->row['points'], 'tax_class_id' => $query->row['tax_class_id'], 'date_available' => $query->row['date_available'], 'weight' => $query->row['weight'], 'weight_class_id' => $query->row['weight_class_id'], 'length' => $query->row['length'], 'width' => $query->row['width'], 'height' => $query->row['height'], 'length_class_id' => $query->row['length_class_id'], 'subtract' => $query->row['subtract'], 'rating' => round($query->row['rating']), 'reviews' => $query->row['reviews'] ? $query->row['reviews'] : 0, 'minimum' => $query->row['minimum'], 'sort_order' => $query->row['sort_order'], 'status' => $query->row['status'], 'date_added' => $query->row['date_added'], 'date_modified' => $query->row['date_modified'], 'viewed' => $query->row['viewed'] ); 

Can I set a condition? $ omg = this is jan number of discounts minus this product purchased by user! isbn -% discount

  if($omg > '0'){price' =>($query->row['discount'] ? $query->row['discount'] : $query->row['price']) * $product_query->row['isbn'])/100) * '$omg')} else{'price' => ($query->row['discount'] ? $query->row['discount'] : $query->row['price']),}