pbootcms模板自动清理runtime缓存

// 自动会话清理脚本
public function clean_session()
{
    check_dir(RUN_PATH . '/archive', true);
    $data = json_decode(trim(substr(file_get_contents(RUN_PATH . '/archive/session_ticket.php'), 15)));
    if($data->expire_time && $data->expire_time < time()){
        ignore_user_abort(true);
        set_time_limit(7200);
        ob_start();
        ob_end_flush();
        flush();
        $rs = path_delete(RUN_PATH . '/session');
        if($rs){
            $data->expire_time = time() + 60 * 60 * 24; // 下一次清理时间
            create_file(RUN_PATH . '/archive/session_ticket.php', "<?php exit();?>".json_encode($data), true);
        }
    } else {
        $data->expire_time = time() - 60 * 60 * 24; // 初始化清理时间
        create_file(RUN_PATH . '/archive/session_ticket.php', "<?php exit();?>".json_encode($data), true);
    }
}