WordPress-Optimierungen

Erweiterungen an /wp-content/themes/default/functions.php

SVG-Upload erlauben:

function kb_svg ( $svg_mime )
{
$svg_mime['svg'] = 'image/svg+xml';
return $svg_mime;
}
add_filter( 'upload_mimes', 'kb_svg' );

Update-Meldungen im Admin-Bereich deaktivieren:

function remove_core_updates(){
global $wp_version;return(object) array('last_checked'=> time(),'version_checked'=> $wp_version,);
}
add_filter('pre_site_transient_update_core','remove_core_updates');
add_filter('pre_site_transient_update_plugins','remove_core_updates');
add_filter('pre_site_transient_update_themes','remove_core_updates');

Verbergen von nicht benötigten Menüpunkten im Admin-Bereich:

function dd_remove_menus()
{
remove_menu_page( 'index.php' );                  //Dashboard
remove_menu_page( 'edit.php' );                   //Posts
remove_menu_page( 'upload.php' );                 //Media
remove_menu_page( 'edit.php?post_type=page' );    //Pages
remove_menu_page( 'edit-comments.php' );          //Comments
remove_menu_page( 'themes.php' );                 //Appearance
remove_menu_page( 'plugins.php' );                //Plugins
remove_menu_page( 'users.php' );                  //Users
remove_menu_page( 'tools.php' );                  //Tools
remove_menu_page( 'options-general.php' );        //Settings
}
add_action( 'admin_menu', 'dd_remove_menus' );

Verbergen von nicht benötigten Untermenüpunkten im Admin-Bereich:

add_action( 'admin_menu', 'dd_adjust_the_wp_menu', 999 );
function dd_adjust_the_wp_menu() 
{
$page = remove_submenu_page( 'themes.php', 'widgets.php' ); //Design / Widges
$page = remove_submenu_page( 'themes.php', 'theme-editor.php' ); //Design / Theme-Editor
}

Funktion für die Darstellung eines Breadcrumb:

function nav_breadcrumb() {
$delimiter = '>';
$home = 'Startseite'; 
$before = '<span class="current-page">'; 
$after = '</span>'; 
if ( !is_home() && !is_front_page() || is_paged() ) {
echo '<nav class="breadcrumb">';
global $post;
$homeLink = get_bloginfo('url');
echo '<a href="' . $homeLink . '">' . $home . '</a> ' . $delimiter . ' ';
if ( is_category()) {
global $wp_query;
$cat_obj = $wp_query->get_queried_object();
$thisCat = $cat_obj->term_id;
$thisCat = get_category($thisCat);
$parentCat = get_category($thisCat->parent);
if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '));
echo $before . single_cat_title('', false) . $after;
} elseif ( is_day() ) {
echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';
echo $before . get_the_time('d') . $after;
} elseif ( is_month() ) {
echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
echo $before . get_the_time('F') . $after;
} elseif ( is_year() ) {
echo $before . get_the_time('Y') . $after;
} elseif ( is_single() && !is_attachment() ) {
if ( get_post_type() != 'post' ) {
$post_type = get_post_type_object(get_post_type());
$slug = $post_type->rewrite;
echo '<a href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a> ' . $delimiter . ' ';
echo $before . get_the_title() . $after;
} else {
$cat = get_the_category(); $cat = $cat[0];
echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
echo $before . get_the_title() . $after;
}
} elseif ( !is_single() && !is_page() && get_post_type() != 'post' && !is_404() ) {
$post_type = get_post_type_object(get_post_type());
echo $before . $post_type->labels->singular_name . $after;
} elseif ( is_attachment() ) {
$parent = get_post($post->post_parent);
$cat = get_the_category($parent->ID); $cat = $cat[0];
echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a> ' . $delimiter . ' ';
echo $before . get_the_title() . $after;
} elseif ( is_page() && !$post->post_parent ) {
echo $before . get_the_title() . $after;
} elseif ( is_page() && $post->post_parent ) {
$parent_id = $post->post_parent;
$breadcrumbs = array();
while ($parent_id) {
$page = get_page($parent_id);
$breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';
$parent_id = $page->post_parent;
}
$breadcrumbs = array_reverse($breadcrumbs);
foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' ';
echo $before . get_the_title() . $after;
} elseif ( is_search() ) {
echo $before . 'Ergebnisse für Ihre Suche nach "' . get_search_query() . '"' . $after;
} elseif ( is_tag() ) {
echo $before . 'Beiträge mit dem Schlagwort "' . single_tag_title('', false) . '"' . $after;
} elseif ( is_tag() ) {
echo $before . 'Beiträge mit dem Schlagwort "' . single_tag_title('', false) . '"' . $after;
} elseif ( is_404() ) {
echo $before . 'Fehler 404' . $after;
}
if ( get_query_var('paged') ) {
if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';
echo ': ' . __('Seite') . ' ' . get_query_var('paged');
if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';
}
echo '</nav>';
} 
} 
if(function_exists('nav_breadcrumb')) nav_breadcrumb(); // <-- Diesen Funktionsaufruf an gewünschter Stelle integrieren. z. b in /wp-content/themes/default/footer.php

Erweiterungen an /wp-config.php

Upload von Themes oder Plugins im Admin-Bereich ohne FTP:

define('FS_METHOD','direct');

Automatische Updates deaktivieren:

define( 'AUTOMATIC_UPDATER_DISABLED', true );

Sonstige Erweiterungen

Anhang-Seiten deaktivieren:

image.php in /wp-content/themes/[themename]/ mit folgendem Inhalt erstellen:

header("location:/");