Source View: wp_list_pages_excludes

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
272           'child_of' => 0, 'exclude' => '', 'title_li' => __('Pages'), 'echo' => 1, 'authors' => '');
273      $r = array_merge($defaults, $r);
274
275      $output = '';
276
277      // sanitize, mostly to keep spaces out
278      $r['exclude'] = preg_replace('[^0-9,]', '', $r['exclude']);
279
280      // Allow plugins to filter an array of excluded pages
281      $r['exclude'] = implode(',', apply_filters('wp_list_pages_excludes', explode(',', $r['exclude'])));
282
283      // Query pages.
284      $pages = get_pages($r);
285
286      if ( !empty($pages) ) {
287           if ( $r['title_li'] )
288                $output .= '<li class="pagenav">' . $r['title_li'] . '<ul>';
289
290           global $wp_query;