php计算两个时间段内的 工作日 工作小时

<?phpclass WorkTime
{
// 定义工作日 [1, 2, 3, 4, 5, 6, 0]
public $week_workingday = [1, 2, 3, 4, 5]; // 定义上下班时间
public $on_duty_time = '9:00:00';
public $off_duty_time = '18:00:00'; //每天工作时长
public $oneday_hours = null; public function __construct()
{
if (empty($this->oneday_hours)) {
$this->oneday_hours = $this->off_duty_time - $this->on_duty_time;
}
} public function get_working_hours(int $start_time, int $over_time)
{
// 如果工作日列表为空 返回0
$workingdays = $this->workingdays($start_time, $over_time); if (empty($workingdays)) {
return 0;
} // 如果开始时间不是工作日,将开始时间调整为第一个工作日的上班时间
// 如果截止时间不是工作日,将开始时间调整为最后一个工作日的下班时间
if (!in_array(date('Y/m/d', $start_time), $workingdays)) {
$start_time = strtotime($workingdays[0] . ' ' . $this->on_duty_time);
} if (!in_array(date('Y/m/d', $over_time), $workingdays)) {
$over_time = strtotime(end($workingdays) . ' ' . $this->off_duty_time);
} // 如果开始时间与截止时间是同一天,直接计算
// 反之分别计算开始时间与截止时间
if (date('Y/m/d', $start_time) == date('Y/m/d', $over_time)) {
$sec = $over_time - $start_time;
if ($sec > 3600 * $this->oneday_hours) {
$sec = 3600 * $this->oneday_hours;
}
// 昨天到了计算秒数
} else {
// 计算开始日工作时间
$start_day_sec = strtotime($workingdays[0] . ' ' . $this->off_duty_time) - $start_time;
if ($start_day_sec > 3600 * $this->oneday_hours) {
$start_day_sec = 3600 * $this->oneday_hours;
}
// 计算截止日工作时间
$over_day_sec = $over_time - strtotime(end($workingdays) . ' ' . $this->on_duty_time);
if ($over_day_sec > 3600 * $this->oneday_hours) {
$over_day_sec = 3600 * $this->oneday_hours;
} $all_day_sec = ((count($workingdays) - 2) * $this->oneday_hours) * 3600;
$sec = $start_day_sec + $over_day_sec + $all_day_sec;
} return $sec / 3600;
} # 计算工作日(包含开始与截止日期)
protected function workingdays($start_time, $over_time)
{
$start_time = strtotime('-1 day', $start_time);
$over_time = strtotime('-1 day', $over_time); $new_workingdays = $this->new_workingdays();
$new_holidays = $this->new_holidays();
$workingdays = []; while ($start_time < $over_time) {
$start_time = strtotime('+1 day', $start_time);
$is_holidays = in_array(date('w', $start_time), $this->week_workingday) && !in_array(date('Y/m/d', $start_time), $new_holidays);
$is_workingdays = in_array(date('Y/m/d', $start_time), $new_workingdays); if ($is_holidays || $is_workingdays) {
$workingdays[] = date('Y/m/d', $start_time);
}
} return $workingdays;
} # 新增工作日
protected function new_workingdays()
{
$days = [
'2020/05/09',
]; return $days;
} # 新增休息日
protected function new_holidays()
{
$days = [
'2020/05/01',
'2020/05/04',
'2020/05/05',
]; return $days;
}}

$start_time = strtotime('2020-05-06 10:00:00');
$over_time = strtotime('2020-05-11 18:00:00');$work = new WorkTime();
$working_hours = $work->get_working_hours($start_time, $over_time);var_dump($working_hours);