Question

I have a MySQL database table called submission with a field called points with a type of bigint(100).

On a PHP file, I have a variable called $commentpoints with a numerical value.

In the PHP file, how could I add $commentpoints to points?

Answer 1

It’s a matter of adding it in your SQL update query:

$sql = 'UPDATE submissions
    SET points = points + ' . (int) $commentpoints . '
    WHERE id = ' . (int) $id;

That will add the value of $commentpoints to the points in the database; just make sure to use the where clause so you don’t add it to every record in the submissions table.