$business_time = explode('-', $v[$k]);
// ['11:30-13:10','17:40-17:40']
$timeBegin = strtotime(date('Y-m-d ' . $business_time[0], time()));
$timeEnd = strtotime(date('Y-m-d ' . $business_time[1], time()));
if ($nowTime >= $timeBegin && $nowTime <= $timeEnd) {
//在时间内
// echo "当前时间{$curr_time},定义的时间为{$timeBegin}-{$timeEnd},时间在范围内!";
} else {
//不在时间
// echo "当前时间{$curr_time},定义的时间为{$timeBegin}-{$timeEnd},时间不在范围内!";
}
// 获取当前时间
$now = new DateTime();
// 构建起始时间和结束时间
$start = new DateTime('2023-07-10 00:00:00');
$end = new DateTime('2023-07-20 00:00:00');
// 判断当前时间是否不在指定时间范围内
if ($now < $start || $now > $end) {
// 当前时间不在指定时间范围内
echo "当前时间不在指定时间范围内";
}