ThinkPHP中获取指定日期后工作日的具体日期方法

/*创建日期类型记录表格*/

CREATE TABLE `tb_workday` (

`did` int(11) NOT NULL AUTO_INCREMENT,

`exact_date` varchar(32) NOT NULL COMMENT '具体日期：格式date("Ymd");(20170205)',

`date_year` varchar(32) NOT NULL COMMENT '具体日期：格式date("Y");(2017)',

`date_type` tinyint(2) NOT NULL COMMENT '日期类型：0、工作日；1、特殊工作日；2、法定节假日',

PRIMARY KEY (`did`)

) ENGINE=InnoDB AUTO_INCREMENT=829 DEFAULT CHARSET=utf8 COMMENT='各年工作日&法定节假日数据'

 $_date) {

   $_ret = 0;

   $_date = date('Ymd', strtotime($_date));

   $_post_data = array('date' => $_date);

   $_ret_curl = curl_post($url, $_post_data);

   $_ret_curl = json_decode($_ret_curl, true);

 

   //工作日

   if ($_ret_curl['data'] == 0) {

    $dateData['exact_date'] = $_date;

    $dateData['date_year'] = $year;

    $dateData['date_type'] = 0;

    $_ret = $m->add($dateData) ? 1 : 0;

    unset($dateData);

 

 

    //工作日 判断是否为周末

    if (in_array(self::get_week($_date), array(0, 1))) {

     //特殊工作日

     $dateData['exact_date'] = $_date;

     $dateData['date_year'] = $year;

     $dateData['date_type'] = 1;

     $_ret = $m->add($dateData) ? 1 : 0;

     unset($dateData);

    }

   }

 

   //法定节假日

   if ($_ret_curl['data'] == 2) {

    $dateData['exact_date'] = $_date;

    $dateData['date_year'] = $year;

    $dateData['date_type'] = 2;

    $_ret = $m->add($dateData) ? 1 : 0;

    unset($dateData);

   }

 

   //休息日(周末) 暂不处理

   /*if ($_ret_curl['data'] == 1) {

 

   }*/

   $_ret && $count++;

   unset($_date, $_post_data, $_ret_curl, $_ret);

  }

  return $count;

 }

 

 /**

  * 获取当年所有工作日 (从数据库获取，数据库无数据则先更新数据)

  * @param string $year 当年年份

  * @return array

  */

 private function getWorkDays($year)

 {

  $m = M('tb_workday');

  $map['date_year'] = $year;

  $map['date_type'] = 0;

  $DateArray = $m->field('exact_date')->where($map)->select();

  if (!empty($DateArray)) {

   $DateArray = array_column($DateArray, 'exact_date');

   return $DateArray;

  } else {

   //更新数据库工作日数据

   $ret = self::updateDate($year);

   if ($ret > 0) {

    return self::getWorkDays($year);

   } else {

    return false;

   }

  }

 }

 

 /**

  * 获取开始日期后第N个工作日具体日期

  * @param $startdate string 计算开始日期 需包含年月日信息

  * @param $days   int 间隔天数

  * @return mixed 成功返回 对应日期，失败返回false

  */

 public function getNextWorkDate($startdate, $days)

 {

  $year = date('Y', strtotime($startdate));

  $startdate = date('Y-m-d', strtotime($startdate));

 

  $workDays = $this->getWorkDays($year);

 

  $search_key = array_search(date('Ymd', strtotime($startdate)), $workDays);

 

  if ($search_key === false) {//查询日期为非工作

   //获取查询日期前最近工作日

   $m = M('tb_workday');

   $map['date_year'] = $year;

   $map['date_type'] = 0;

   $map['DATE_FORMAT(`exact_date`,'%Y-%m-%d')'] = array('LT', $startdate);

   $_search_date = $m->where($map)->order('`exact_date` DESC')->getField('exact_date');

   $search_key = array_search($_search_date, $workDays);

   unset($m, $map, $_search_date);

  }

 

  $t_key = $search_key + $days;

 

  if ($t_key <= count($workDays) - 1) {

   return date('Y-m-d', strtotime($workDays[$t_key]));

  } else {

   //查询日期已跨年

   $n_days = $days - (count($workDays) - 1 - $search_key);

   $next_year = $year + 1;

   return $this->getNextWorkDate($next_year . '-01-01', $n_days - 1);

  }

 }

}

 

 

$startdate = '2018-09-28';

$days = 5;

 

$class = new work_days();

$_date_workday = $class->getNextWorkDate($startdate, $days);

echo $_date_workday;//2018-10-10