$placeholders;
            $replacement-fields;
			
			
			if ($password <> $oldpassword){
			  $placeholders = $placeholders . "?,";
			  $replacement-fields = $replacement-fields . "password = '$password',";   
			}
			if ($forename <> $oldforename)){
			  $placeholders = $placeholders . "?,";
			  $replacement-fields = $replacement-fields . "forename = '$forename',;
			}
            if ($lastname.value <> $oldlastname){
			  $placeholders = $placeholders . "?,";
			  $replacement-fields = $replacement-fields . "lastname = '$lastname',";   
			}
            if ($business <> $oldbusiness){
			  $placeholders = $placeholders . "?" 
			  $replacement-fields = $replacement-fields . "business = '$business',";   
			}
			if ($city <> $oldcity){
			  $placeholders = $placeholders . "?," 
			  $replacement-fields = $replacement-fields . "city = '$city',";   
			}
            if ($zip <> $oldzip){
			  $placeholders = $placeholders . "?,"   <--------------------------
			  $replacement-fields = $replacement-fields . "zip = '$zip',";  <--- Problem with last , from last field requiring update. Pull that off before using the two variables   
			}
			
			
           $query = "UPDATE users SET $placeholders where user_id = '$user_id'";

           $sth = $dbh->prepare($query);

           $sth->execute($replacement-fields) or die "Unable to execute query: " . $sth->errstr;