格式化和获取php中的总时间

Question

我让这段代码处理像'4-5‘和'1-7’这样的字符串

$times = explode("-", $time);
$thpw += ($times[1]- $times[0]);

问题是当有这样的多个时间格式时。

1-2, 5-6
or
8-12, 1-2, 4-5, 6-7

我该如何利用它来捕捉时间呢？

Answer 1

也要用爆炸的方法，

$times = explode(",","8-12, 1-2, 4-5, 6-7");
$thpw = 0;
foreach($times as $time){
   $time_arr = explode("-", $time);
   $thpw += ($time_arr[1]- $time_arr[0]);
}
echo $thpw; // 7

演示。