Increment value in mysql update query

Question

I have made this code for giving out +1 point, but it doesn't work properly.

mysql_query("
    UPDATE member_profile 
    SET points= ' ".$points." ' + 1 
    WHERE user_id = '".$userid."'
");

the $points variable is the user´s points right now.. I want it to plus one to it.. so example if he had like 5 points, it should be 5+1 = 6.. but it doesnt, it just changes to 1

What have i done wrong? thank you

Answer 1

You could also just do this:

mysql_query("
    UPDATE member_profile 
    SET points = points + 1
    WHERE user_id = '".$userid."'
");