Obteniendo Titulo en WordPress para todas las secciones

Si necesitas obtener correctamente los títulos de las páginas dentro de wordpress aqui te dejo la función que encontre hace mucho tiempo y aún me sigue funcionando.

<?php
/** titulo **/
    function filter_wp_title( $title, $separator ) {
        // Don't affect wp_title() calls in feeds.
        if ( is_feed() )
            return $title;
    
        // The $paged global variable contains the page number of a listing of posts.
        // The $page global variable contains the page number of a single post that is paged.
        // We'll display whichever one applies, if we're not looking at the first page.
        global $paged, $page;
    
        if ( is_search() ) {
            // If we're a search, let's start over:
            $title = sprintf( __( 'Search results for %s' ), '"' . get_search_query() . '"' );
            // Add a page number if we're on page 2 or more:
            if ( $paged >= 2 )
                $title .= " $separator " . sprintf( __( 'Page %s' ), $paged );
            // Add the site name to the end:
            $title .= " $separator " . get_bloginfo( 'name', 'display' );
            // We're done. Let's send the new title back to wp_title():
            return $title;
        }
    
        // Otherwise, let's start by adding the site name to the end:
        $title .= get_bloginfo( 'name', 'display' );
    
        // If we have a site description and we're on the home/front page, add the description:
        $site_description = get_bloginfo( 'description', 'display' );
        if ( $site_description && ( is_home() || is_front_page() ) )
            $title .= " $separator " . $site_description;
    
        // Add a page number if necessary:
        if ( $paged >= 2 || $page >= 2 )
            $title .= " $separator " . sprintf( __( 'Page %s' ), max( $paged, $page ) );
    
        // Return the new title to wp_title():
        return $title;
    }
    add_filter( 'wp_title', 'filter_wp_title', 10, 2 );
?>

Para usarlo solo debes colocar en el header, entre las etiquetas title:

<title><?php wp_title( '|', true, 'right' );    ?></title>