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'

<?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