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
823
824      $output = '';
825      $current_page = 0;
826
827      // sanitize, mostly to keep spaces out
828      $r['exclude'] = preg_replace('/[^0-9,]/', '', $r['exclude']);
829
830      // Allow plugins to filter an array of excluded pages (but don't put a nullstring into the array)
831      $exclude_array = ( $r['exclude'] ) ? explode(',', $r['exclude']) : array();
832      $r['exclude'] = implode( ',', apply_filters('wp_list_pages_excludes', $exclude_array) );
833
834      // Query pages.
835      $r['hierarchical'] = 0;
836      $pages = get_pages($r);
837
838      if ( !empty($pages) ) {
839           if ( $r['title_li'] )
840                $output .= '<li class="pagenav">' . $r['title_li'] . '<ul>';
841