1. 计算两个日期相隔多少年，多少月，多少天

  示例：laravel框架实现

/*** 天数计算* @return \Illuminate\Http\JsonResponse*/public function loveDateCal(){$start_date = $this->request('start_date');$end_date = $this->request('end_date');// 计算两个日期相差 年 月 日$diff_date = $this->diffDate($start_date, $end_date);$data = ['year_number' => intval($diff_date['y']),'month_number' => $diff_date['m'],'day_number' => $diff_date['d'],'total_day_number' => $diff_date['a'],];return $this->jsonSuc(['result' => $data ?? []]);}/*** function：计算两个日期相隔多少年，多少月，多少天* param string $date1[格式如：2020-11-5]* param string $date2[格式如：2023-12-01]* return array array('年','月','日');*/function diffDate($date1, $date2){$datetime1 = new \DateTime($date1);$datetime2 = new \DateTime($date2);$interval = $datetime1->diff($datetime2);$time['y'] = $interval->format('%Y');$time['m'] = $interval->format('%m');$time['d'] = $interval->format('%d');$time['h'] = $interval->format('%H');$time['i'] = $interval->format('%i');$time['s'] = $interval->format('%s');$time['a'] = $interval->format('%a');    // 两个时间相差总天数return $time;}