public static function get_instance()
{
if (null == self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
<?php
/**
* Admin page
*/
// Exit if accessed directly.
if (!defined('ABSPATH')) {
exit;
}
$upd = FM_Admin::get_instance();
$upd->check_for_update();
$fm_plugins = $upd->fm_plugins;
$updates = $upd->updates;
?>
<link href="<?php
echo plugins_url('admin.css', __FILE__);
?>
" rel="stylesheet"/>
<div class="wrap">
<?php
settings_errors();
?>
<div id="fm-settings">
<div id="fm-settings-content">
<h2 id="add_on_title"><?php
echo esc_html(get_admin_page_title());
?>
</h2>
