Drupal 7 Views output changes by QueryPath

MY_MODULE.module

<?php
// Moving lots of stuff (filters, counters, headers...) around in a View 
// using QueryPath.
// Not quite the most Drupal-like, but actually much more reliable when it
// comes to inserting items into filters that are not covered by the Views UI 
// and moving counters out of the header.

/**
 * Implements hook_views_post_render().
 */
function MY_MODULE_views_post_render(&$view, &$output, &$cache) {
  if ($view->name === 'MY_VIEW_NAME' && ($view->current_display === 'page')) {
    // Load QueryPath to juggle items around the page.
    require_once DRUPAL_ROOT . '/sites/all/vendor/querypath/querypath/src/qp.php';
    $view_query_path = htmlqp($output);

    // Add help link to filters.
    $help_markup = '<div class="filter-help"><a href="/some/path/help">Help</a></div>';
    $filters = $view_query_path->find('.views-exposed-form')->first()->html();
    $view_query_path->find('.views-exposed-form')->first()->html("{$help_markup} \n {$filters}");
    // Add definitions link to category filters.
    $definitions_link = '<div class="filter-help definitions"><a href="/some/path/secondary-filter-help">View category help</a></div>';
    $filters = $view_query_path->find('.bef-secondary-options')->first()->html();
    $view_query_path->find('.bef-secondary-options')->first()->html("{$definitions_link} \n {$filters}");
    // Move counter from header to top of results.
    $counter = $view_query_path->find('.view-count')->first()->remove();
    // Create a results header between the filter and the results.
    $results_header = '<div class="views-row results-header"></div>';
    $view_query_path->find('.views-row-1')->first()->before($results_header);
    $view_query_path->find('.results-header')->first()->prepend($counter);
    // Create a title within the results header.
    $results_title = t('Search Results');
    $results_header_title = "<h2 class=\"title\">{$results_title}</h2>";
    $view_query_path->find('.results-header')->first()->prepend($results_header_title);
    // Move Search and reset buttons to in-between the two sets of filters.
    $buttons = $view_query_path->find('.views-action-buttons')->first()->remove();
    $view_query_path->find('#edit-secondary-wrapper')->first()->before($buttons);

    $output = $view_query_path->html();
  }
}

// Care has to be taken to avoid using fragile selectors that may change.

Referenced here http://web-dev.wirt.us/info/drupal-7-code-snippets/moving-views-exposed-filters-form-elements-around