提供个思路。
1、从聚合数据上“获取当前假期列表API”抓取出当年的假期并存储到表里；
2、从stackexchange.com借鉴了一个“计算指定工作日后的日期”的类库，参考修改如下(1步骤获取的假期列表为此类库的一个参数$holidays)：
class BusinessDaysCalculator {
const MONDAY = 1;
const TUESDAY = 2;
const WEDNESDAY = 3;
const THURSDAY = 4;
const FRIDAY = 5;
const SATURDAY = 6;
const SUNDAY = 7;
/**
* @param DateTime $startDate Date to start calculations from
* @param DateTime[] $holidays Array of holidays, holidays are no conisdered business days.
* @param DateTime[] $nonBusinessDays Array of days of the week which are not business days.
* @param DateTime[] $specialBusinessDay Array is the special work day.
*/
public function __construct(DateTime $startDate, array $holidays, array $nonBusinessDays ,array $specialBusinessDay) {
$this->date = $startDate;
$this->holidays=[];
foreach($holidays as $holiday){
array_push($this->holidays,new DateTime($holiday));
}
$this->nonBusinessDays = $nonBusinessDays;
$this->specialBusinessDay = $specialBusinessDay;
}
public function addBusinessDays($howManyDays) {
$i = 0;
while ($i < $howManyDays) {
$this->date->modify("+1 day");
if ($this->isBusinessDay($this->date)) {
$i++;
}
}
}
public function getDate() {
return $this->date->format('Y-m-d');
}
private function isBusinessDay(DateTime $date) {
if(in_array($date->format('Y-m-d') , $this->specialBusinessDay)) return true; //判断当前日期是否是因法定节假日调休而上班的周末，这种情况也算工作日
if (in_array((int)$date->format('N'), $this->nonBusinessDays)) {
return false; //当前日期是周末
}
foreach ($this->holidays as $day) {
if ($date->format('Y-m-d') == $day->format('Y-m-d')) {
return false; //当前日期是法定节假日
}
}
return true;
}
}
$holidays=["2017-01-27","2017-01-28","2017-01-29","2017-01-30","2017-01-31","2017-02-01","2017-02-02"];//从聚合数据接口获得
$specialBusinessDay=["2017-01-22"];//因法定节假日调休而上班的周末，这种情况也算工作日.因为这种情况少，可以通过手动配置
$calculator = new BusinessDaysCalculator(
new DateTime(), //当前时间
$holidays,
[BusinessDaysCalculator::SATURDAY, BusinessDaysCalculator::SUNDAY],
$specialBusinessDay
);
$calculator->addBusinessDays(2); // 2个工作日后的时间
$afterBusinessDay=$calculator->getDate();
echo $afterBusinessDay;
转播
