static function Instance() { if (null === MainWP_Child_Back_Up_Wordpress::$instance) { MainWP_Child_Back_Up_Wordpress::$instance = new MainWP_Child_Back_Up_Wordpress(); } return MainWP_Child_Back_Up_Wordpress::$instance; }
function backup_wp() { if (!version_compare(phpversion(), '5.3', '>=')) { $error = sprintf(__('PHP Version %s is unsupported.', 'mainwp-child'), phpversion()); MainWP_Helper::write(array('error' => $error)); } MainWP_Child_Back_Up_Wordpress::Instance()->action(); }