egroupware/calendar/inc/class.holidaycalc_US.inc.php

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<?php
/**************************************************************************\
* phpGroupWare - holidaycalc_US *
* http://www.phpgroupware.org *
* Based on Yoshihiro Kamimura <your@itheart.com> *
* http://www.itheart.com *
* -------------------------------------------- *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
class holidaycalc {
function calculate_date($holiday, &$holidays, $year, $datetime, &$i)
{
// if($holiday['day'] == 0 && $holiday['dow'] != 0 && $holiday['occurence'] != 0)
if($holiday['day'] == 0 && $holiday['occurence'] != 0)
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{
if($holiday['occurence'] != 99)
{
$dow = $datetime->day_of_week($year,$holiday['month'],1);
$day = (((7 * $holiday['occurence']) - 6) + (($holiday['dow'] - $dow) % 7));
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$day += ($day < 1 ? 7 : 0);
$day += ($holiday['dow']==1 ? 7 : 0);
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}
else
{
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$ld = $datetime->days_in_month($holiday['month'],$year);
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$dow = $datetime->day_of_week($year,$holiday['month'],$ld);
$day = $ld - ($dow - $holiday['dow']) % 7 ;
}
}
else
{
$day = $holiday['day'];
if($holiday['observance_rule'] == True)
{
$dow = $datetime->day_of_week($year,$holiday['month'],$day);
// This now calulates Observed holidays and creates a new entry for them.
if($dow == 0)
{
$i++;
$holidays[$i]['locale'] = $holiday['locale'];
$holidays[$i]['name'] = $holiday['name'].' (Observed)';
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$holidays[$i]['day'] = $holiday['day'] + 1;
$holidays[$i]['month'] = $holiday['month'];
$holidays[$i]['occurence'] = $holiday['occurence'];
$holidays[$i]['dow'] = $holiday['dow'];
$holidays[$i]['date'] = mktime(0,0,0,$holiday['month'],$day+1,$year) - $datetime->tz_offset;
$holidays[$i]['obervance_rule'] = 0;
}
elseif($dow == 6)
{
$i++;
$holidays[$i]['locale'] = $holiday['locale'];
$holidays[$i]['name'] = $holiday['name'].' (Observed)';
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$holidays[$i]['day'] = $holiday['day'] - 1;
$holidays[$i]['month'] = $holiday['month'];
$holidays[$i]['occurence'] = $holiday['occurence'];
$holidays[$i]['dow'] = $holiday['dow'];
$holidays[$i]['date'] = mktime(0,0,0,$holiday['month'],$day-1,$year) - $datetime->tz_offset;
$holidays[$i]['obervance_rule'] = 0;
}
}
}
$date = mktime(0,0,0,$holiday['month'],$day,$year) - $datetime->tz_offset;
return $date;
}
}
?>