//WordPress 已发布文章数量

$count_posts = wp_count_posts(); echo $published_posts =$count_posts->publish;

functions.php:

/*
    Widgets小工具调用
*/
function adademy_widgets_init() {
    if ( !function_exists('register_sidebars') )
        return;

    $p = array(
        'before_widget'  =>   "\n\t\t\t" . '<li id="%1$s" class="widget %2$s">',
        'after_widget'   =>   "\n\t\t\t</li>\n",
        'before_title'   =>   "\n\t\t\t\t". '<h3 class="widgettitle">',
        'after_title'    =>   "</h3>\n"
    );

    // Table for how many? Two? This way, please.
    register_sidebars( 2, $p );

    $widget_ops = array(
        'classname'    =>  'widget_search',
        'description'  =>  __( "A search form for your blog ", "academy" )
    );
    wp_register_sidebar_widget( 'search', __( 'Search', 'academy' ), 'academy', $widget_ops );
    unregister_widget_control('search');
    wp_register_widget_control( 'search', __( 'Search', 'academy' ), 'academy' );

    // adademy Meta widget
    $widget_ops = array(
        'classname'    =>  'widget_meta',
        'description'  =>  __( "Log in/out and administration links (academy)", "academy" )
    );
    wp_register_sidebar_widget( 'meta', __( 'Meta', 'academy' ), 'academy', $widget_ops );
    unregister_widget_control('meta');
    wp_register_widget_control( 'meta', __( 'Meta', 'academy' ), 'wp_widget_meta_control' );
}
add_action( 'init', 'adademy_widgets_init' );

/*
 * 打开自定义页面(生成seo链接)
 * */
function load_single_template($template) {
    $new_template = '';
    if( is_single() ) {
        global $post;
        if( has_term('seodata-zh', 'category', $post) ) {
            $new_template = locate_template(array('single-seodata-zh.php' ));
        }
        if( has_term('seodata-en', 'category', $post) ) {
            $new_template = locate_template(array('single-seodata-en.php' ));
        }
    }
    return ('' != $new_template) ? $new_template : $template;
}
add_action('template_include', 'load_single_template');