PHP時間重疊檢查

Question

我需要檢查兩個時間範圍是否重疊。 例如，

TIME1：13:20 - 13時40分
TIME2：14:00 - 14:30
時間3：13：30 - 13點50分

TIME1和時間3重疊。我如何檢查這個？

time1和time2有20分鐘的差距，但是如果差距小於30分鐘，它也應該被認爲是重疊的。

任何人都可以幫助我，非常感謝。

Answer 1

這個？

$_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; 
     } 
    } 
}