Question

I have a count field in a table that I need to increment and this is what I have.

$click_tracker_row = mysql_fetch_array($result);
$current_count = $click_tracker_row['count'];
$new_count = $current_count + 1;
$query_wiki ="UPDATE click_tracker  SET count = '{$new_count}' WHERE click_tracker_id = '{$click_tracker_row['click_tracker_id']}' LIMIT 1";                 
$result = mysql_query($query) ;

But it never changes….is there a better way of doing this and why is this not working
count is an integer field

Answer 1

You should simply update this counter using SQL and use PHP’s mysql_real_escape_string()-function to prevent SQL injection:

$query_wiki ="UPDATE click_tracker SET count = count + 1 WHERE click_tracker_id = '".mysql_real_escape_string($click_tracker_row['click_tracker_id'])."' LIMIT 1";

Furthermore, there is a typo in your mysql_query()-call. You will need to pass $query_wiki to it.