//禁止 WordPress 动态文章 ID 访问
//last update 2016/11/07
add_action('parse_query', 'disable_permalink_isvars_p');
function disable_permalink_isvars_p( $wp_query, $error = true ) {
	if(get_query_var('p') && !is_preview()){
		$wp_query->query_vars['p'] = false;
		$wp_query->query['p'] = false;
		// to error
		if ( $error == true ) $wp_query->is_404 = true;
	}
}