Add 1 to a field

Question

How do I turn the following 2 queries into 1 query

$sql    = \"SELECT level FROM skills WHERE id = $id LIMIT 1;\";
$result = $db->sql_query($sql);
$level  = (         


        

Answer 1

With PDO and prepared query:

$query = $db->prepare("UPDATE skills SET level = level + 1 WHERE id = :id")
$query->bindValue(":id", $id);
$result = $query->execute();