Incrementing DB values

With QueryBuilder this should work, not tested but give it a try.

PHP Code:

$db      = db_connect();
$builder = $db->table('your_table');

$data = ['votes' => '(votes + 5)'];
// or
$votes = $votes + 5;
$data = ['votes' => $votes];

$builder->where('id', $id)
        ->update($data); 


What did you Try? What did you Get? What did you Expect?

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