Question

UPDATE a75ting.username
SET points = points - 5

i want to change the points column in the database WHERE username = $usern

is that how is works?

ALSO– is the $rows variable a session type of variable? can i only request the db connect once to use $rows anywhere? or do you need to connect to tb per request?

Answer 1

You need a table, so the query would be:

UPDATE Table 
SET points = points - 5
 WHERE username = 'mike'

In php it would be:

mysql_query("UPDATE Table SET points = points - 5 WHERE username = '". mysql_real_escape_string($username) . "'");

With regards to your question about session variables, no $row would not be a session variable. The only session variables exist within the $_SESSION array.