AdministratorAction::getSearchPost PHP Method

    public function getSearchPost()
    {
        $init = empty($_POST) ? true : false;
        if (!empty($_POST)) {
            $_SESSION['admin_init_post'][$this->searchPageKey] = $_POST;
        } else {
            $_POST = $_SESSION['admin_init_post'][$this->searchPageKey];
        }
        //去除其他页面的session数据
        foreach ($_SESSION['admin_init_post'] as $k => $v) {
            if ($k != $this->searchPageKey) {
                unset($_SESSION['admin_init_post'][$k]);
            } else {
                if ($init && intval($_REQUEST['p']) == 0) {
                    unset($_POST);
                    unset($_SESSION['admin_init_post'][$k]);
                }
            }
        }
        return $_POST;
    }