Question

I need to check if two time ranges overlap. For example,

time1: 13:20 - 13:40
time2: 14:00 - 14:30
time3: 13:30 - 13:50

时间1 和时间3 重叠。我如何检查?

时间1和时间2的间隔为20分钟,但如果间隔少于30分钟,则也应视为重叠。

任何人都可以帮我这一点,非常感谢。

Answer 1

这个?

$_30mins = 60*30;  // 60 secs * 30 minutes
// make the times into seconds
$times = array();
$times[] = array("from"=>mktime(13,20,0,1,1,1970),"to"=>mktime(13,40,0,1,1,1970));
$times[] = array("from"=>mktime(14,00,0,1,1,1970),"to"=>mktime(14,30,0,1,1,1970));
$times[] = array("from"=>mktime(13,30,0,1,1,1970),"to"=>mktime(13,50,0,1,1,1970));

foreach($times as $key=>$val) {
   foreach($times as $key2=>$val2) {
      if ($key2!=$key && (($val["from"]>=$val2["from"] && $val["from"]<=$val2["to"]) || 
         (abs($val["to"]-$val2["from"])<$_30mins))) {
         echo "time $key overlaps with $key2<br>";
         break;
      }
   }
}

友情链接