function hook_init

Perform setup tasks.

This hook is run at the beginning of the page request. It is typically used to set up global parameters which are needed later in the request.

Only use this hook if your code must run even for cached page views. If you have code which must run once on all non cached pages, use hook_menu(!$may_cache) instead. Thats the usual case. If you implement this hook and see an error like 'Call to undefined function', it is likely that you are depending on the presence of a module which has not been loaded yet. It is not loaded because Drupal is still in bootstrap mode. The usual fix is to move your code to hook_menu(!$may_cache).

Return value

None.

Related topics

File

developer/hooks/core.php, line 502

These are the hooks that are invoked by the Drupal core.

Code

function hook_init() {
  global $recent_activity;
  if (variable_get('statistics_enable_auto_throttle', 0) && !rand(0, variable_get('statistics_probability_limiter', 9))) {
    $throttle = throttle_status();

    // if we're at throttle level 5, we don't do anything
    if ($throttle < 5) {
      $multiplier = variable_get('statistics_throttle_multiplier', 60);

      // count all hits in past sixty seconds
      $result = db_query('SELECT COUNT(timestamp) AS hits FROM
        {accesslog} WHERE timestamp >= %d', time() - 60);
      $recent_activity = db_fetch_array($result);
      throttle_update($recent_activity['hits']);
    }
  }
}