下头这些代码能不能简写啊

下面这些代码能不能简写啊？
下面这段代码有没有简单办法实现啊，我觉得这样写太复杂了，如果写一个月的数据，岂不是需要写30个case
求大侠帮忙，俺是新手

date_default_timezone_set('PRC');
$c1=0;
$c2=0;
$c3=0;
$c4=0;
$c5=0;
$c6=0;
$c7=0;
$w = date("w",time());
switch($w){
	case 1: 
		
		break; 
	case 2:
	    $t1=strtotime(date("Y-m-d")." 23:59:59");//周二
		$t2=strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");//周一
		if($t2<1387420136&&1387420136<=$t1){
			$c1 += 1;
		}elseif(1387420136<=$t2){
			$c2 += 1;
		}
		echo $c1;
		break; 
	case 3:
	    $t1=strtotime(date("Y-m-d")." 23:59:59");//周三
		$t2=strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");//周二
		$t3=strtotime(date("Y-m-d",strtotime("-2 day"))." 23:59:59");//周一
		if($t2<1387420136&&1387420136<=$t1){
			$c1 += 1;
		}elseif($t3<1387420136&&1387420136<=$t2){
			$c2 += 1;
		}elseif(1387420136<=$t3){
			$c3 += 1;
		}
		echo $c1;		
		break; 
	case 4:
	    $t1=strtotime(date("Y-m-d")." 23:59:59");//周四
		$t2=strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");//周三
		$t3=strtotime(date("Y-m-d",strtotime("-2 day"))." 23:59:59");//周二
		$t4=strtotime(date("Y-m-d",strtotime("-3 day"))." 23:59:59");//周一
		if($t2<1387420136&&1387420136<=$t1){
			$c1 += 1;
		}elseif($t3<1387420136&&1387420136<=$t2){
			$c2 += 1;
		}elseif($t4<1387420136&&1387420136<=$t3){
			$c3 += 1;
		}elseif(1387420136<=$t4){
			$c4 += 1;
		}
		echo $c1;
		break; 
	case 5:
		$t1=strtotime(date("Y-m-d")." 23:59:59");//周五
		$t2=strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");//周四
		$t3=strtotime(date("Y-m-d",strtotime("-2 day"))." 23:59:59");//周三
		$t4=strtotime(date("Y-m-d",strtotime("-3 day"))." 23:59:59");//周二
		$t5=strtotime(date("Y-m-d",strtotime("-4 day"))." 23:59:59");//周一
		if($t2<1387420136&&1387420136<=$t1){
			$c1 += 1;
		}elseif($t3<1387420136&&1387420136<=$t2){
			$c2 += 1;
		}elseif($t4<1387420136&&1387420136<=$t3){
			$c3 += 1;
		}elseif($t5<1387420136&&1387420136<=$t4){
			$c4 += 1;
		}elseif(1387420136<=$t5){
			$c5 += 1;
		}
		echo $c1;
		break; 
	case 6:
		$t1=strtotime(date("Y-m-d")." 23:59:59");//周六
		$t2=strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");//周五
		$t3=strtotime(date("Y-m-d",strtotime("-2 day"))." 23:59:59");//周四
		$t4=strtotime(date("Y-m-d",strtotime("-3 day"))." 23:59:59");//周三
		$t5=strtotime(date("Y-m-d",strtotime("-4 day"))." 23:59:59");//周二
		$t6=strtotime(date("Y-m-d",strtotime("-5 day"))." 23:59:59");//周一
		if($t2<1387420136&&1387420136<=$t1){
			$c1 += 1;
		}elseif($t3<1387420136&&1387420136<=$t2){
			$c2 += 1;
		}elseif($t4<1387420136&&1387420136<=$t3){
			$c3 += 1;
		}elseif($t5<1387420136&&1387420136<=$t4){
			$c4 += 1;
		}elseif($t6<1387420136&&1387420136<=$t5){
			$c5 += 1;
		}elseif(1387420136<=$t6){
			$c6 += 1;
		}
		echo $c1;
		break; 
	case 7:
	    $t1=strtotime(date("Y-m-d")." 23:59:59");//周日
		$t2=strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");//周六
		$t3=strtotime(date("Y-m-d",strtotime("-2 day"))." 23:59:59");//周五
		$t4=strtotime(date("Y-m-d",strtotime("-3 day"))." 23:59:59");//周四
		$t5=strtotime(date("Y-m-d",strtotime("-4 day"))." 23:59:59");//周三
		$t6=strtotime(date("Y-m-d",strtotime("-5 day"))." 23:59:59");//周二
		$t7=strtotime(date("Y-m-d",strtotime("-6 day"))." 23:59:59");//周一
		if($t2<1387420136&&1387420136<=$t1){
			$c1 += 1;
		}elseif($t3<1387420136&&1387420136<=$t2){
			$c2 += 1;
		}elseif($t4<1387420136&&1387420136<=$t3){
			$c3 += 1;
		}elseif($t5<1387420136&&1387420136<=$t4){
			$c4 += 1;
		}elseif($t6<1387420136&&1387420136<=$t5){
			$c5 += 1;
		}elseif($t7<1387420136&&1387420136<=$t6){
			$c6 += 1;
		}elseif(1387420136<=$t7){
			$c7 += 1;
		}
		echo $c1;
		break;
	default:;			    
}
?>