Рассчитать рабочие дни

Question

Мне нужен метод для добавления «рабочих дней» в PHP. Например, пятница 12/5 + 3 рабочих дня = среда 12/10.

Как минимум, мне нужен код для понимания выходных, но в идеале он должен учитывать и федеральные праздники США. Я уверен, что мог бы найти решение, используя грубую силу, если это необходимо, но я надеюсь, что есть более элегантный подход. Кто-нибудь? * * 1003

Спасибо.

Answer 1

Ниже приведен рабочий код для расчета рабочих дней с указанной даты.

<?php
$holiday_date_array = array("2016-01-26", "2016-03-07", "2016-03-24", "2016-03-25", "2016-04-15", "2016-08-15", "2016-09-12", "2016-10-11", "2016-10-31");
$date_required = "2016-03-01";

function increase_date($date_required, $holiday_date_array=array(), $days = 15){
    if(!empty($date_required)){
        $counter_1=0;
        $incremented_date = '';
        for($i=1; $i <= $days; $i++){
            $date = strtotime("+$i day", strtotime($date_required));
            $day_name = date("D", $date);
            $incremented_date = date("Y-m-d", $date);
            if($day_name=='Sat'||$day_name=='Sun'|| in_array($incremented_date ,$holiday_date_array)==true){
                $counter_1+=1;
            }
        }
        if($counter_1 > 0){
            return increase_date($incremented_date, $holiday_date_array, $counter_1);
        }else{
            return $incremented_date;
        }
    }else{
        return 'invalid';
    }
}

echo increase_date($date_required, $holiday_date_array, 15);
?>

//output after adding 15 business working days in 2016-03-01 will be "2016-03-23"

Answer 2

Вот еще одно решение без цикла for для каждого дня.

$from = new DateTime($first_date);
$to = new DateTime($second_date);

$to->modify('+1 day');
$interval = $from->diff($to);
$days = $interval->format('%a');

$extra_days = fmod($days, 7);
$workdays = ( ( $days - $extra_days ) / 7 ) * 5;

$first_day = date('N', strtotime($first_date));
$last_day = date('N', strtotime("1 day", strtotime($second_date)));
$extra = 0;
if($first_day > $last_day) {
   if($first_day == 7) {
       $first_day = 6;
   }

   $extra = (6 - $first_day) + ($last_day - 1);
   if($extra < 0) {
       $extra = $extra * -1;
   }
}
if($last_day > $first_day) {
    $extra = $last_day - $first_day;
}
$days = $workdays + $extra

Answer 3

Этот фрагмент кода очень прост для расчета рабочего дня без выходных и праздничных дней:

function getWorkingDays($startDate,$endDate,$offdays,$holidays){
$endDate = strtotime($endDate);
$startDate = strtotime($startDate);
$days = ($endDate - $startDate) / 86400 + 1;
$counter=0;
for ($i = 1; $i <= $days; $i++) {
    $the_first_day_of_week = date("N", $startDate);
    $startDate+=86400;
if (!in_array($the_first_day_of_week, $offdays) && !in_array(date("Y-m-
d",$startDate), $holidays)) {
$counter++;
}

}   
return $counter;
}
//example to use
$holidays=array("2017-07-03","2017-07-20");
$offdays=array(5,6);//weekend days Monday=1 .... Sunday=7
echo getWorkingDays("2017-01-01","2017-12-31",$offdays,$holidays)

Answer 4

Для праздников создайте массив дней в некотором формате, который может генерировать date (). Пример:

// I know, these aren't holidays
$holidays = array(
    'Jan 2',
    'Feb 3',
    'Mar 5',
    'Apr 7',
    // ...
);

Затем используйте функции in_array () и date () , чтобы проверить, представляет ли метка времени выходной:

$day_of_year = date('M j', $timestamp);
$is_holiday = in_array($day_of_year, $holidays);

Answer 5

date_default_timezone_set('America/New_York');


/** Given a number days out, what day is that when counting by 'business' days
  * get the next business day. by default it looks for next business day
  * ie calling  $date = get_next_busines_day(); on monday will return tuesday
  *             $date = get_next_busines_day(2); on monday will return wednesday
  *             $date = get_next_busines_day(2); on friday will return tuesday
  *
  * @param $number_of_business_days (integer)       how many business days out do you want
  * @param $start_date (string)                     strtotime parseable time value
  * @param $ignore_holidays (boolean)               true/false to ignore holidays
  * @param $return_format (string)                  as specified in php.net/date
 */
function get_next_business_day($number_of_business_days=1,$start_date='today',$ignore_holidays=false,$return_format='m/d/y') {

    // get the start date as a string to time
    $result = strtotime($start_date);

    // now keep adding to today's date until number of business days is 0 and we land on a business day
    while ($number_of_business_days > 0) {
        // add one day to the start date
        $result = strtotime(date('Y-m-d',$result) . " + 1 day");

        // this day counts if it's a weekend and not a holiday, or if we choose to ignore holidays
        if (is_weekday(date('Y-m-d',$result)) && (!(is_holiday(date('Y-m-d',$result))) || $ignore_holidays) ) 
            $number_of_business_days--;

    }

    // when my $number of business days is exausted I have my final date

    return(date($return_format,$result));
}

    function is_weekend($date) {
    // return if this is a weekend date or not.
    return (date('N', strtotime($date)) >= 6);
}

function is_weekday($date) {
    // return if this is a weekend date or not.
    return (date('N', strtotime($date)) < 6);
}

function is_holiday($date) {
    // return if this is a holiday or not.

    // what are my holidays for this year
    $holidays = array("New Year's Day 2011" => "12/31/10",
                        "Good Friday" => "04/06/12",
                        "Memorial Day" => "05/28/12",
                        "Independence Day" => "07/04/12",
                        "Floating Holiday" => "12/31/12",
                        "Labor Day" => "09/03/12",
                        "Thanksgiving Day" => "11/22/12",
                        "Day After Thanksgiving Day" => "11/23/12",
                        "Christmas Eve" => "12/24/12",
                        "Christmas Day" => "12/25/12",
                        "New Year's Day 2012" => "01/02/12",
                        "New Year's Day 2013" => "01/01/13"
                        );

    return(in_array(date('m/d/y', strtotime($date)),$holidays));
}


print get_next_business_day(1) . "\n";

Answer 6

Вот рекурсивное решение. Его можно легко изменить, чтобы отслеживать и возвращать только самую последнюю дату.

//  Returns a $numBusDays-sized array of all business dates, 
//  starting from and including $currentDate. 
//  Any date in $holidays will be skipped over.

function getWorkingDays($currentDate, $numBusDays, $holidays = array(), 
  $resultDates = array())
{
  //  exit when we have collected the required number of business days
  if ($numBusDays === 0) {
    return $resultDates;
  }

  //  add current date to return array, if not a weekend or holiday
  $date = date("w", strtotime($currentDate));
  if ( $date != 0  &&  $date != 6  &&  !in_array($currentDate, $holidays) ) {
    $resultDates[] = $currentDate;
    $numBusDays -= 1;
  }

  //  set up the next date to test
  $currentDate = new DateTime("$currentDate + 1 day");
  $currentDate = $currentDate->format('Y-m-d');

  return getWorkingDays($currentDate, $numBusDays, $holidays, $resultDates);
}

//  test
$days = getWorkingDays('2008-12-05', 4);
print_r($days);

Answer 7

<?php 
function AddWorkDays(){
$i = 0;
$d = 5; // Number of days to add

    while($i <= $d) {
    $i++;
        if(date('N', mktime(0, 0, 0, date(m), date(d)+$i, date(Y))) < 5) {
            $d++;
        }
    }
    return date(Y).','.date(m).','.(date(d)+$d);
}
?>

Answer 8

Вариант 1:

<?php
/*
 * Does not count current day, the date returned is the last business day
 * Requires PHP 5.1 (Using ISO-8601 week)
 */

function businessDays($timestamp = false, $bDays = 2) {
    if($timestamp === false) $timestamp = time();
    while ($bDays>0) {
        $timestamp += 86400;
        if (date('N', $timestamp)<6) $bDays--;
    }
    return $timestamp;
}

Вариант 2:

<?php
/*
 * Does not count current day, the date returned is a business day 
 * following the last business day
 * Requires PHP 5.1 (Using ISO-8601 week)
 */

function businessDays($timestamp = false, $bDays = 2) {
    if($timestamp === false) $timestamp = time();
    while ($bDays+1>0) {
        $timestamp += 86400;
        if (date('N', $timestamp)<6) $bDays--;
    }
    return $timestamp;
}

Вариант 3:

<?php
/*
 * Does not count current day, the date returned is 
 * a date following the last business day (can be weekend or not. 
 * See above for alternatives)
 * Requires PHP 5.1 (Using ISO-8601 week)
 */

function businessDays($timestamp = false, $bDays = 2) {
    if($timestamp === false) $timestamp = time();
    while ($bDays>0) {
        $timestamp += 86400;
        if (date('N', $timestamp)<6) $bDays--;
    }
    return $timestamp += 86400;
}

Дополнительные соображения по поводу праздников могут быть сделаны с использованием различных вариантов, описанных ниже. Заметка! убедитесь, что все временные метки совпадают по времени суток (то есть в полночь).

Создайте массив дат праздников (в виде unixtimestamps), т. Е .:

$holidays = array_flip(strtotime('2011-01-01'),strtotime('2011-12-25'));

Изменить строку:

if (date('N', $timestamp)<6) $bDays--;

быть:

if (date('N', $timestamp)<6 && !isset($holidays[$timestamp])) $bDays--;

Готово!

<?php
/*
 * Does not count current day, the date returned is the last business day
 * Requires PHP 5.1 (Using ISO-8601 week)
 */

function businessDays($timestamp = false, $bDays = 2) {
    if($timestamp === false) $timestamp = strtotime(date('Y-m-d',time()));
    $holidays = array_flip(strtotime('2011-01-01'),strtotime('2011-12-25'));
    while ($bDays>0) {
        $timestamp += 86400;
        if (date('N', $timestamp)<6 && !isset($holidays[$timestamp])) $bDays--;
    }
    return $timestamp;
}

Answer 9

<?php
// $today is the UNIX timestamp for today's date
$today = time();
echo "<strong>Today is (ORDER DATE): " . '<font color="red">' . date('l, F j, Y', $today) . "</font></strong><br/><br/>";

//The numerical representation for day of week (Ex. 01 for Monday .... 07 for Sunday
$today_numerical = date("N",$today);

//leadtime_days holds the numeric value for the number of business days 
$leadtime_days = $_POST["leadtime"];

//leadtime is the adjusted date for shipdate
$shipdate = time();

while ($leadtime_days > 0) 
{
 if ($today_numerical != 5 && $today_numerical != 6)
 {
  $shipdate = $shipdate + (60*60*24);
  $today_numerical = date("N",$shipdate);
  $leadtime_days --;
 }
 else
  $shipdate = $shipdate + (60*60*24);
  $today_numerical = date("N",$shipdate);
}

echo '<strong>Estimated Ship date: ' . '<font color="green">' . date('l, F j, Y', $shipdate) . "</font></strong>";
?>

Answer 10

У меня была такая же потребность, я начал с первого примера бобины и закончил с этим

  function add_business_days($startdate,$buisnessdays,$holidays=array(),$dateformat){
    $enddate = strtotime($startdate);
    $day = date('N',$enddate);
    while($buisnessdays > 1){
        $enddate = strtotime(date('Y-m-d',$enddate).' +1 day');
        $day = date('N',$enddate);
        if($day < 6 && !in_array($enddate,$holidays))$buisnessdays--;
    }
    return date($dateformat,$enddate);
  }

че-то