也许是这样的

$the_post_type = get_post_type( $post->ID );

switch ( $the_post_type ) {
    case \'page\':
        // you\'ll need something else to distinguish "landing" pages from normal ones
        // which would allow you to then set a flag for it 

        if ( $some_condition ) $landing_page = true; 

        if ( $landing_page) {
            // display your title with the class that\'ll centre it
        }
    break;

    case \'post\':
    case default:
        // display your title with the normal class
}

你可以把它放在你的主题风格中。css

h1.page-title {
    text-align: center;
}

<h1 class="page-title"><?php the_title(); ?></h1>