如何从数据库表中获取MySQL和MySQL中的MAX product_id？

Question

I want to have a function on my website where on the "New" page, it will show my single newest product, so it will need to take the last one added to the products table in SQL but I cannot figure out how to get the max and retrieve it onto the website with the price and image.

I am getting the 2 errors below, line 58 is the $pro_price line and 59 is the $pro_image:

Notice: Undefined index: product_price in /opt/lampp/htdocs/ecommerce/new.php on line 58

Notice: Undefined index: product_image in /opt/lampp/htdocs/ecommerce/new.php on line 59

<?php

$get_pro = "select MAX(product_id) from products";

$run_pro = mysqli_query($con, $get_pro);

while($row_pro=mysqli_fetch_array($run_pro)){

    $pro_price = $row_pro['product_price'];
    $pro_image = $row_pro['product_image'];

Answer 1

To retrieve the last record, you can order it by the product_id (descending) and just use limit to fetch 1 record...

$get_pro = "select product_id, product_price, product_image 
               from products
               order by product_id desc
               limit 1";