一些 刊号期号计算方式

//获取计算
function bjk3qihao(){
	$isse = 123696; //对应的期号时间
	$dd = strtotime('2018-10-22 23:50:40');  //600+20   600+40

	while ($dd < time()){
		$cc = $dd;

		echo date('Y_m-d H:i:s',$cc) . 'cc<br>';

		$dd += tktq($dd,'09:10:40','23:50:40');
		echo date('Y_m-d H:i:s',$dd) . 'dd<br>';

		if($dd > time()){

			$ff['expect'] = $isse;
			$ff['opentime'] = $cc;

			return $ff;
		}else{
			$isse ++;
		}

	}

}
//时间间隔
function tktq($tt,$k,$j){

	$checkDayStr = date('Y-m-d ',$tt);
	$time   = $tt;
	$time1 = strtotime($checkDayStr.$k);
	$time2 = strtotime($checkDayStr.$j);
	if($time1 < $time && $time < $time2){
		return 600;
	}else{

		return 33610 -9;
	}
}