Conjunto de utilidades para temas do Wordpress

wp-functions.php

<?php

// remove junk from head
remove_action('wp_head', 'rsd_link');
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'feed_links', 2);
remove_action('wp_head', 'index_rel_link');
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'feed_links_extra', 3);
remove_action('wp_head', 'start_post_rel_link', 10, 0);
remove_action('wp_head', 'parent_post_rel_link', 10, 0);
remove_action('wp_head', 'adjacent_posts_rel_link', 10, 0);
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);

// removes detailed login error information for security
add_filter('login_errors', create_function('$a', "return null;"));

// excludes pages from search results
function exclude_pages_from_search($query) {
	if ( $query->is_search ) { $query->set('post_type', 'post'); }
	return $query;
}
add_filter('pre_get_posts','exclude_pages_from_search');

// post thumbnail support
if ( function_exists('add_theme_support') ) {
	add_theme_support('post-thumbnails');
	set_post_thumbnail_size(240, 180, true);
}

// add featured image in RSS feeds
function featured_image_in_rss($content) {
  global $post;
  if ( has_post_thumbnail($post->ID) ) {
    $content = '<div class="featured_image_post_rss">' . get_the_post_thumbnail($post->ID, array(240,9999), array('class' => ' alignleft')) . '</div>' . $content;
  }
  return $content;
}
add_filter('the_excerpt_rss', 'featured_image_in_rss'); //Add the filter for RSS feeds Excerpt
add_filter('the_content_feed', 'featured_image_in_rss'); //Add the filter for RSS feed content

// enables wigitized sidebars
if ( function_exists('register_sidebar') ) {
  register_sidebar(array('name'=>'Sidebar',
                    'before_widget' => '<div id="%1$s" class="widget-area widget-sidebar">',
                    'after_widget' => '</div> <!-- widget #%1$s -->',
                    'before_title' => '<h3>',
                    'after_title' => '</h3>',
  ));
}

// custom menu support
add_theme_support('menus');
if ( function_exists('register_nav_menus') ) {
  register_nav_menus(array(
                      'header-menu' => 'Header Menu',
                      'footer-menu' => 'Footer Menu',
  ));
}