页面已过期（可能页面真的过期了，也可能是刚才你访问的网页没有完全加载，也可能是你的浏览器版本太老）

返回

EOD); } } function submission_frequency_check() { $recent = clone UOJTime::$time_now; $recent->sub(new DateInterval("PT1S")); $num = DB::selectCount([ "select count(*) from submissions", "where", [ "submitter" => Auth::id(), ["submit_time", ">=", $recent->format('Y-m-d H:i:s')] ] ]); if ($num >= 1) { return false; } // use the implementation below if OJ is under attack /* // 1 $recent = clone UOJTime::$time_now; $recent->sub(new DateInterval("PT3S")); $num = DB::selectCount([ "select count(*) from submissions", "where", [ "submitter" => Auth::id(), ["submit_time", ">=", $recent->format('Y-m-d H:i:s')] ] ]); if ($num >= 1) { return false; } // 2 $recent = clone UOJTime::$time_now; $recent->sub(new DateInterval("PT1M")); $num = DB::selectCount([ "select count(*) from submissions", "where", [ "submitter" => Auth::id(), ["submit_time", ">=", $recent->format('Y-m-d H:i:s')] ] ]); if ($num >= 6) { return false; } // 3 $recent = clone UOJTime::$time_now; $recent->sub(new DateInterval("PT30M")); $num = DB::selectCount([ "select count(*) from submissions", "where", [ "submitter" => Auth::id(), ["submit_time", ">=", $recent->format('Y-m-d H:i:s')] ] ]); if ($num >= 30) { return false; } */ return true; }