public static function getInstance() { if (!self::$_instance instanceof self) { self::$_instance = new self(); } return self::$_instance; }
<?php include_once 'common.php'; include 'header.php'; include 'menu.php'; require dirname(__FILE__) . '/../Access.php'; $extend = Access_Extend::getInstance(); ?> <div class="main"> <div class="body container"> <div class="typecho-page-title"> <h2><?php echo $extend->title; ?> </h2> </div> <div class="row typecho-page-main" role="main"> <div class="col-mb-12"> <ul class="typecho-option-tabs fix-tabs clearfix"> <li<?php echo $extend->action == 'overview' ? ' class="current"' : ''; ?> ><a href="<?php $options->adminUrl('extending.php?panel=' . Access_Plugin::$panel . '&action=overview'); ?> "><?php _e('访问概览'); ?> </a></li> <li<?php