/*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' <?php class work_days{ /** * 获取星期 * @param $date * @return mixed */ function get_week($date) { //强制转换日期格式 $date_str = date('Y-m-d', strtotime($date)); //封装成数组 $arr = explode("-", $date_str); //参数赋值 //年 $year = $arr[0]; //月，输出2位整型，不够2位右对齐 $month = sprintf('%02d', $arr[1]); //日，输出2位整型，不够2位右对齐 $day = sprintf('%02d', $arr[2]); //时分秒默认赋值为0； $hour = $minute = $second = 0; //转换成时间戳 $strap = mktime($hour, $minute, $second, $month, $day, $year); //获取数字型星期几 $number_wk = date("w", $strap); //获取数字对应的星期 return $number_wk; //自定义星期数组 //$weekArr = array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"); //获取数字对应的星期 //return $weekArr[$number_wk]; } /** * 获取指定日期段内每一天的日期 * @param string $startdate 开始日期 * @param string $enddate 结束日期 * @return array */ function getDateFromRange($startdate, $enddate) { $stimestamp = strtotime($startdate); $etimestamp = strtotime($enddate); // 计算日期段内有多少天 $days = ($etimestamp - $stimestamp) / 86400 + 1; // 保存每天日期 $_list_date = array(); for ($i = 0; $i < $days; $i++) { $_list_date[] = date('Y-m-d', $stimestamp + (86400 * $i)); } return $_list_date; } function curl_post($url, $data = null) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); if (!empty($data)) { curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($curl); curl_close($curl); return $output; } /** * 更新数据库指定年份日期数据 * @param $year * @return int */ function updateDate($year) { $startDate = date('Y-m-d', strtotime($year . '-01-01')); $endDate = date('Y-m-d', strtotime('+1 year', strtotime($startDate)) - 86400); $_list_date = self::getDateFromRange($startDate, $endDate); $url = 'http://api.goseek.cn/Tools/holiday';//自行查找的免费API $m = M('tb_workday'); $count = 0; foreach ($_list_date as $k => $_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 
