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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:39:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:39:39 +0000 |
commit | 8ca6cc32b2c789a3149861159ad258f2cb9491e3 (patch) | |
tree | 2492de6f1528dd44eaa169a5c1555026d9cb75ec /library/vendor/Zend/Date/DateObject.php | |
parent | Initial commit. (diff) | |
download | icingaweb2-8ca6cc32b2c789a3149861159ad258f2cb9491e3.tar.xz icingaweb2-8ca6cc32b2c789a3149861159ad258f2cb9491e3.zip |
Adding upstream version 2.11.4.upstream/2.11.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/vendor/Zend/Date/DateObject.php')
-rw-r--r-- | library/vendor/Zend/Date/DateObject.php | 1094 |
1 files changed, 1094 insertions, 0 deletions
diff --git a/library/vendor/Zend/Date/DateObject.php b/library/vendor/Zend/Date/DateObject.php new file mode 100644 index 0000000..5c01d15 --- /dev/null +++ b/library/vendor/Zend/Date/DateObject.php @@ -0,0 +1,1094 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Date + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @version $Id$ + * @license http://framework.zend.com/license/new-bsd New BSD License + */ + +/** + * @category Zend + * @package Zend_Date + * @subpackage Zend_Date_DateObject + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +abstract class Zend_Date_DateObject { + + /** + * UNIX Timestamp + */ + private $_unixTimestamp; + protected static $_cache = null; + protected static $_cacheTags = false; + protected static $_defaultOffset = 0; + + /** + * active timezone + */ + private $_timezone = 'UTC'; + private $_offset = 0; + private $_syncronised = 0; + + // turn off DST correction if UTC or GMT + protected $_dst = true; + + /** + * Table of Monthdays + */ + private static $_monthTable = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); + + /** + * Table of Years + */ + private static $_yearTable = array( + 1970 => 0, 1960 => -315619200, 1950 => -631152000, + 1940 => -946771200, 1930 => -1262304000, 1920 => -1577923200, + 1910 => -1893456000, 1900 => -2208988800, 1890 => -2524521600, + 1880 => -2840140800, 1870 => -3155673600, 1860 => -3471292800, + 1850 => -3786825600, 1840 => -4102444800, 1830 => -4417977600, + 1820 => -4733596800, 1810 => -5049129600, 1800 => -5364662400, + 1790 => -5680195200, 1780 => -5995814400, 1770 => -6311347200, + 1760 => -6626966400, 1750 => -6942499200, 1740 => -7258118400, + 1730 => -7573651200, 1720 => -7889270400, 1710 => -8204803200, + 1700 => -8520336000, 1690 => -8835868800, 1680 => -9151488000, + 1670 => -9467020800, 1660 => -9782640000, 1650 => -10098172800, + 1640 => -10413792000, 1630 => -10729324800, 1620 => -11044944000, + 1610 => -11360476800, 1600 => -11676096000); + + /** + * Set this object to have a new UNIX timestamp. + * + * @param string|integer $timestamp OPTIONAL timestamp; defaults to local time using time() + * @return string|integer old timestamp + * @throws Zend_Date_Exception + */ + protected function setUnixTimestamp($timestamp = null) + { + $old = $this->_unixTimestamp; + + if (is_numeric($timestamp)) { + $this->_unixTimestamp = $timestamp; + } else if ($timestamp === null) { + $this->_unixTimestamp = time(); + } else { + throw new Zend_Date_Exception('\'' . $timestamp . '\' is not a valid UNIX timestamp', 0, null, $timestamp); + } + + return $old; + } + + /** + * Returns this object's UNIX timestamp + * A timestamp greater then the integer range will be returned as string + * This function does not return the timestamp as object. Use copy() instead. + * + * @return integer|string timestamp + */ + protected function getUnixTimestamp() + { + if ($this->_unixTimestamp === intval($this->_unixTimestamp)) { + return (int) $this->_unixTimestamp; + } else { + return (string) $this->_unixTimestamp; + } + } + + /** + * Internal function. + * Returns time(). This method exists to allow unit tests to work-around methods that might otherwise + * be hard-coded to use time(). For example, this makes it possible to test isYesterday() in Date.php. + * + * @param integer $sync OPTIONAL time syncronisation value + * @return integer timestamp + */ + protected function _getTime($sync = null) + { + if ($sync !== null) { + $this->_syncronised = round($sync); + } + return (time() + $this->_syncronised); + } + + /** + * Internal mktime function used by Zend_Date. + * The timestamp returned by mktime() can exceed the precision of traditional UNIX timestamps, + * by allowing PHP to auto-convert to using a float value. + * + * Returns a timestamp relative to 1970/01/01 00:00:00 GMT/UTC. + * DST (Summer/Winter) is depriciated since php 5.1.0. + * Year has to be 4 digits otherwise it would be recognised as + * year 70 AD instead of 1970 AD as expected !! + * + * @param integer $hour + * @param integer $minute + * @param integer $second + * @param integer $month + * @param integer $day + * @param integer $year + * @param boolean $gmt OPTIONAL true = other arguments are for UTC time, false = arguments are for local time/date + * @return integer|float timestamp (number of seconds elapsed relative to 1970/01/01 00:00:00 GMT/UTC) + */ + protected function mktime($hour, $minute, $second, $month, $day, $year, $gmt = false) + { + // complete date but in 32bit timestamp - use PHP internal + if ((1901 < $year) and ($year < 2038)) { + + $oldzone = @date_default_timezone_get(); + // Timezone also includes DST settings, therefor substracting the GMT offset is not enough + // We have to set the correct timezone to get the right value + if (($this->_timezone != $oldzone) and ($gmt === false)) { + date_default_timezone_set($this->_timezone); + } + $result = ($gmt) ? @gmmktime($hour, $minute, $second, $month, $day, $year) + : @mktime($hour, $minute, $second, $month, $day, $year); + date_default_timezone_set($oldzone); + + return $result; + } + + if ($gmt !== true) { + $second += $this->_offset; + } + + if (isset(self::$_cache)) { + $id = strtr('Zend_DateObject_mkTime_' . $this->_offset . '_' . $year.$month.$day.'_'.$hour.$minute.$second . '_'.(int)$gmt, '-','_'); + if ($result = self::$_cache->load($id)) { + return unserialize($result); + } + } + + // date to integer + $day = intval($day); + $month = intval($month); + $year = intval($year); + + // correct months > 12 and months < 1 + if ($month > 12) { + $overlap = floor($month / 12); + $year += $overlap; + $month -= $overlap * 12; + } else { + $overlap = ceil((1 - $month) / 12); + $year -= $overlap; + $month += $overlap * 12; + } + + $date = 0; + if ($year >= 1970) { + + // Date is after UNIX epoch + // go through leapyears + // add months from latest given year + for ($count = 1970; $count <= $year; $count++) { + + $leapyear = self::isYearLeapYear($count); + if ($count < $year) { + + $date += 365; + if ($leapyear === true) { + $date++; + } + + } else { + + for ($mcount = 0; $mcount < ($month - 1); $mcount++) { + $date += self::$_monthTable[$mcount]; + if (($leapyear === true) and ($mcount == 1)) { + $date++; + } + + } + } + } + + $date += $day - 1; + $date = (($date * 86400) + ($hour * 3600) + ($minute * 60) + $second); + } else { + + // Date is before UNIX epoch + // go through leapyears + // add months from latest given year + for ($count = 1969; $count >= $year; $count--) { + + $leapyear = self::isYearLeapYear($count); + if ($count > $year) + { + $date += 365; + if ($leapyear === true) + $date++; + } else { + + for ($mcount = 11; $mcount > ($month - 1); $mcount--) { + $date += self::$_monthTable[$mcount]; + if (($leapyear === true) and ($mcount == 2)) { + $date++; + } + + } + } + } + + $date += (self::$_monthTable[$month - 1] - $day); + $date = -(($date * 86400) + (86400 - (($hour * 3600) + ($minute * 60) + $second))); + + // gregorian correction for 5.Oct.1582 + if ($date < -12220185600) { + $date += 864000; + } else if ($date < -12219321600) { + $date = -12219321600; + } + } + + if (isset(self::$_cache)) { + if (self::$_cacheTags) { + self::$_cache->save( serialize($date), $id, array('Zend_Date')); + } else { + self::$_cache->save( serialize($date), $id); + } + } + + return $date; + } + + /** + * Returns true, if given $year is a leap year. + * + * @param integer $year + * @return boolean true, if year is leap year + */ + protected static function isYearLeapYear($year) + { + // all leapyears can be divided through 4 + if (($year % 4) != 0) { + return false; + } + + // all leapyears can be divided through 400 + if ($year % 400 == 0) { + return true; + } else if (($year > 1582) and ($year % 100 == 0)) { + return false; + } + + return true; + } + + /** + * Internal mktime function used by Zend_Date for handling 64bit timestamps. + * + * Returns a formatted date for a given timestamp. + * + * @param string $format format for output + * @param mixed $timestamp + * @param boolean $gmt OPTIONAL true = other arguments are for UTC time, false = arguments are for local time/date + * @return string + */ + protected function date($format, $timestamp = null, $gmt = false) + { + $oldzone = @date_default_timezone_get(); + if ($this->_timezone != $oldzone) { + date_default_timezone_set($this->_timezone); + } + + if ($timestamp === null) { + $result = ($gmt) ? @gmdate($format) : @date($format); + date_default_timezone_set($oldzone); + return $result; + } + + if (abs($timestamp) <= 0x7FFFFFFF) { + // See ZF-11992 + // "o" will sometimes resolve to the previous year (see + // http://php.net/date ; it's part of the ISO 8601 + // standard). However, this is not desired, so replacing + // all occurrences of "o" not preceded by a backslash + // with "Y" + $format = preg_replace('/(?<!\\\\)o/', 'Y', $format); + $result = ($gmt) ? @gmdate($format, $timestamp) : @date($format, $timestamp); + date_default_timezone_set($oldzone); + return $result; + } + + $jump = false; + $origstamp = $timestamp; + if (isset(self::$_cache)) { + $idstamp = strtr('Zend_DateObject_date_' . $this->_offset . '_'. $timestamp . '_'.(int)$gmt, '-','_'); + if ($result2 = self::$_cache->load($idstamp)) { + $timestamp = unserialize($result2); + $jump = true; + } + } + + // check on false or null alone fails + if (empty($gmt) and empty($jump)) { + $tempstamp = $timestamp; + if ($tempstamp > 0) { + while (abs($tempstamp) > 0x7FFFFFFF) { + $tempstamp -= (86400 * 23376); + } + + $dst = date("I", $tempstamp); + if ($dst === 1) { + $timestamp += 3600; + } + + $temp = date('Z', $tempstamp); + $timestamp += $temp; + } + + if (isset(self::$_cache)) { + if (self::$_cacheTags) { + self::$_cache->save( serialize($timestamp), $idstamp, array('Zend_Date')); + } else { + self::$_cache->save( serialize($timestamp), $idstamp); + } + } + } + + if (($timestamp < 0) and ($gmt !== true)) { + $timestamp -= $this->_offset; + } + + date_default_timezone_set($oldzone); + $date = $this->getDateParts($timestamp, true); + $length = strlen($format); + $output = ''; + + for ($i = 0; $i < $length; $i++) { + switch($format[$i]) { + // day formats + case 'd': // day of month, 2 digits, with leading zero, 01 - 31 + $output .= (($date['mday'] < 10) ? '0' . $date['mday'] : $date['mday']); + break; + + case 'D': // day of week, 3 letters, Mon - Sun + $output .= date('D', 86400 * (3 + self::dayOfWeek($date['year'], $date['mon'], $date['mday']))); + break; + + case 'j': // day of month, without leading zero, 1 - 31 + $output .= $date['mday']; + break; + + case 'l': // day of week, full string name, Sunday - Saturday + $output .= date('l', 86400 * (3 + self::dayOfWeek($date['year'], $date['mon'], $date['mday']))); + break; + + case 'N': // ISO 8601 numeric day of week, 1 - 7 + $day = self::dayOfWeek($date['year'], $date['mon'], $date['mday']); + if ($day == 0) { + $day = 7; + } + $output .= $day; + break; + + case 'S': // english suffix for day of month, st nd rd th + if (($date['mday'] % 10) == 1) { + $output .= 'st'; + } else if ((($date['mday'] % 10) == 2) and ($date['mday'] != 12)) { + $output .= 'nd'; + } else if (($date['mday'] % 10) == 3) { + $output .= 'rd'; + } else { + $output .= 'th'; + } + break; + + case 'w': // numeric day of week, 0 - 6 + $output .= self::dayOfWeek($date['year'], $date['mon'], $date['mday']); + break; + + case 'z': // day of year, 0 - 365 + $output .= $date['yday']; + break; + + + // week formats + case 'W': // ISO 8601, week number of year + $output .= $this->weekNumber($date['year'], $date['mon'], $date['mday']); + break; + + + // month formats + case 'F': // string month name, january - december + $output .= date('F', mktime(0, 0, 0, $date['mon'], 2, 1971)); + break; + + case 'm': // number of month, with leading zeros, 01 - 12 + $output .= (($date['mon'] < 10) ? '0' . $date['mon'] : $date['mon']); + break; + + case 'M': // 3 letter month name, Jan - Dec + $output .= date('M',mktime(0, 0, 0, $date['mon'], 2, 1971)); + break; + + case 'n': // number of month, without leading zeros, 1 - 12 + $output .= $date['mon']; + break; + + case 't': // number of day in month + $output .= self::$_monthTable[$date['mon'] - 1]; + break; + + + // year formats + case 'L': // is leap year ? + $output .= (self::isYearLeapYear($date['year'])) ? '1' : '0'; + break; + + case 'o': // ISO 8601 year number + $week = $this->weekNumber($date['year'], $date['mon'], $date['mday']); + if (($week > 50) and ($date['mon'] == 1)) { + $output .= ($date['year'] - 1); + } else { + $output .= $date['year']; + } + break; + + case 'Y': // year number, 4 digits + $output .= $date['year']; + break; + + case 'y': // year number, 2 digits + $output .= substr($date['year'], strlen($date['year']) - 2, 2); + break; + + + // time formats + case 'a': // lower case am/pm + $output .= (($date['hours'] >= 12) ? 'pm' : 'am'); + break; + + case 'A': // upper case am/pm + $output .= (($date['hours'] >= 12) ? 'PM' : 'AM'); + break; + + case 'B': // swatch internet time + $dayseconds = ($date['hours'] * 3600) + ($date['minutes'] * 60) + $date['seconds']; + if ($gmt === true) { + $dayseconds += 3600; + } + $output .= (int) (($dayseconds % 86400) / 86.4); + break; + + case 'g': // hours without leading zeros, 12h format + if ($date['hours'] > 12) { + $hour = $date['hours'] - 12; + } else { + if ($date['hours'] == 0) { + $hour = '12'; + } else { + $hour = $date['hours']; + } + } + $output .= $hour; + break; + + case 'G': // hours without leading zeros, 24h format + $output .= $date['hours']; + break; + + case 'h': // hours with leading zeros, 12h format + if ($date['hours'] > 12) { + $hour = $date['hours'] - 12; + } else { + if ($date['hours'] == 0) { + $hour = '12'; + } else { + $hour = $date['hours']; + } + } + $output .= (($hour < 10) ? '0'.$hour : $hour); + break; + + case 'H': // hours with leading zeros, 24h format + $output .= (($date['hours'] < 10) ? '0' . $date['hours'] : $date['hours']); + break; + + case 'i': // minutes with leading zeros + $output .= (($date['minutes'] < 10) ? '0' . $date['minutes'] : $date['minutes']); + break; + + case 's': // seconds with leading zeros + $output .= (($date['seconds'] < 10) ? '0' . $date['seconds'] : $date['seconds']); + break; + + + // timezone formats + case 'e': // timezone identifier + if ($gmt === true) { + $output .= gmdate('e', mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], 2000)); + } else { + $output .= date('e', mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], 2000)); + } + break; + + case 'I': // daylight saving time or not + if ($gmt === true) { + $output .= gmdate('I', mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], 2000)); + } else { + $output .= date('I', mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], 2000)); + } + break; + + case 'O': // difference to GMT in hours + $gmtstr = ($gmt === true) ? 0 : $this->getGmtOffset(); + $output .= sprintf('%s%04d', ($gmtstr <= 0) ? '+' : '-', abs($gmtstr) / 36); + break; + + case 'P': // difference to GMT with colon + $gmtstr = ($gmt === true) ? 0 : $this->getGmtOffset(); + $gmtstr = sprintf('%s%04d', ($gmtstr <= 0) ? '+' : '-', abs($gmtstr) / 36); + $output = $output . substr($gmtstr, 0, 3) . ':' . substr($gmtstr, 3); + break; + + case 'T': // timezone settings + if ($gmt === true) { + $output .= gmdate('T', mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], 2000)); + } else { + $output .= date('T', mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], 2000)); + } + break; + + case 'Z': // timezone offset in seconds + $output .= ($gmt === true) ? 0 : -$this->getGmtOffset(); + break; + + + // complete time formats + case 'c': // ISO 8601 date format + $difference = $this->getGmtOffset(); + $difference = sprintf('%s%04d', ($difference <= 0) ? '+' : '-', abs($difference) / 36); + $difference = substr($difference, 0, 3) . ':' . substr($difference, 3); + $output .= $date['year'] . '-' + . (($date['mon'] < 10) ? '0' . $date['mon'] : $date['mon']) . '-' + . (($date['mday'] < 10) ? '0' . $date['mday'] : $date['mday']) . 'T' + . (($date['hours'] < 10) ? '0' . $date['hours'] : $date['hours']) . ':' + . (($date['minutes'] < 10) ? '0' . $date['minutes'] : $date['minutes']) . ':' + . (($date['seconds'] < 10) ? '0' . $date['seconds'] : $date['seconds']) + . $difference; + break; + + case 'r': // RFC 2822 date format + $difference = $this->getGmtOffset(); + $difference = sprintf('%s%04d', ($difference <= 0) ? '+' : '-', abs($difference) / 36); + $output .= gmdate('D', 86400 * (3 + self::dayOfWeek($date['year'], $date['mon'], $date['mday']))) . ', ' + . (($date['mday'] < 10) ? '0' . $date['mday'] : $date['mday']) . ' ' + . date('M', mktime(0, 0, 0, $date['mon'], 2, 1971)) . ' ' + . $date['year'] . ' ' + . (($date['hours'] < 10) ? '0' . $date['hours'] : $date['hours']) . ':' + . (($date['minutes'] < 10) ? '0' . $date['minutes'] : $date['minutes']) . ':' + . (($date['seconds'] < 10) ? '0' . $date['seconds'] : $date['seconds']) . ' ' + . $difference; + break; + + case 'U': // Unix timestamp + $output .= $origstamp; + break; + + + // special formats + case "\\": // next letter to print with no format + $i++; + if ($i < $length) { + $output .= $format[$i]; + } + break; + + default: // letter is no format so add it direct + $output .= $format[$i]; + break; + } + } + + return (string) $output; + } + + /** + * Returns the day of week for a Gregorian calendar date. + * 0 = sunday, 6 = saturday + * + * @param integer $year + * @param integer $month + * @param integer $day + * @return integer dayOfWeek + */ + protected static function dayOfWeek($year, $month, $day) + { + if ((1901 < $year) and ($year < 2038)) { + return (int) date('w', mktime(0, 0, 0, $month, $day, $year)); + } + + // gregorian correction + $correction = 0; + if (($year < 1582) or (($year == 1582) and (($month < 10) or (($month == 10) && ($day < 15))))) { + $correction = 3; + } + + if ($month > 2) { + $month -= 2; + } else { + $month += 10; + $year--; + } + + $day = floor((13 * $month - 1) / 5) + $day + ($year % 100) + floor(($year % 100) / 4); + $day += floor(($year / 100) / 4) - 2 * floor($year / 100) + 77 + $correction; + + return (int) ($day - 7 * floor($day / 7)); + } + + /** + * Internal getDateParts function for handling 64bit timestamps, similar to: + * http://www.php.net/getdate + * + * Returns an array of date parts for $timestamp, relative to 1970/01/01 00:00:00 GMT/UTC. + * + * $fast specifies ALL date parts should be returned (slower) + * Default is false, and excludes $dayofweek, weekday, month and timestamp from parts returned. + * + * @param mixed $timestamp + * @param boolean $fast OPTIONAL defaults to fast (false), resulting in fewer date parts + * @return array + */ + protected function getDateParts($timestamp = null, $fast = null) + { + + // actual timestamp + if (!is_numeric($timestamp)) { + return getdate(); + } + + // 32bit timestamp + if (abs($timestamp) <= 0x7FFFFFFF) { + return @getdate((int) $timestamp); + } + + if (isset(self::$_cache)) { + $id = strtr('Zend_DateObject_getDateParts_' . $timestamp.'_'.(int)$fast, '-','_'); + if ($result = self::$_cache->load($id)) { + return unserialize($result); + } + } + + $otimestamp = $timestamp; + $numday = 0; + $month = 0; + // gregorian correction + if ($timestamp < -12219321600) { + $timestamp -= 864000; + } + + // timestamp lower 0 + if ($timestamp < 0) { + $sec = 0; + $act = 1970; + + // iterate through 10 years table, increasing speed + foreach(self::$_yearTable as $year => $seconds) { + if ($timestamp >= $seconds) { + $i = $act; + break; + } + $sec = $seconds; + $act = $year; + } + + $timestamp -= $sec; + if (!isset($i)) { + $i = $act; + } + + // iterate the max last 10 years + do { + --$i; + $day = $timestamp; + + $timestamp += 31536000; + $leapyear = self::isYearLeapYear($i); + if ($leapyear === true) { + $timestamp += 86400; + } + + if ($timestamp >= 0) { + $year = $i; + break; + } + } while ($timestamp < 0); + + $secondsPerYear = 86400 * ($leapyear ? 366 : 365) + $day; + + $timestamp = $day; + // iterate through months + for ($i = 12; --$i >= 0;) { + $day = $timestamp; + + $timestamp += self::$_monthTable[$i] * 86400; + if (($leapyear === true) and ($i == 1)) { + $timestamp += 86400; + } + + if ($timestamp >= 0) { + $month = $i; + $numday = self::$_monthTable[$i]; + if (($leapyear === true) and ($i == 1)) { + ++$numday; + } + break; + } + } + + $timestamp = $day; + $numberdays = $numday + ceil(($timestamp + 1) / 86400); + + $timestamp += ($numday - $numberdays + 1) * 86400; + $hours = floor($timestamp / 3600); + } else { + + // iterate through years + for ($i = 1970;;$i++) { + $day = $timestamp; + + $timestamp -= 31536000; + $leapyear = self::isYearLeapYear($i); + if ($leapyear === true) { + $timestamp -= 86400; + } + + if ($timestamp < 0) { + $year = $i; + break; + } + } + + $secondsPerYear = $day; + + $timestamp = $day; + // iterate through months + for ($i = 0; $i <= 11; $i++) { + $day = $timestamp; + $timestamp -= self::$_monthTable[$i] * 86400; + + if (($leapyear === true) and ($i == 1)) { + $timestamp -= 86400; + } + + if ($timestamp < 0) { + $month = $i; + $numday = self::$_monthTable[$i]; + if (($leapyear === true) and ($i == 1)) { + ++$numday; + } + break; + } + } + + $timestamp = $day; + $numberdays = ceil(($timestamp + 1) / 86400); + $timestamp = $timestamp - ($numberdays - 1) * 86400; + $hours = floor($timestamp / 3600); + } + + $timestamp -= $hours * 3600; + + $month += 1; + $minutes = floor($timestamp / 60); + $seconds = $timestamp - $minutes * 60; + + if ($fast === true) { + $array = array( + 'seconds' => $seconds, + 'minutes' => $minutes, + 'hours' => $hours, + 'mday' => $numberdays, + 'mon' => $month, + 'year' => $year, + 'yday' => floor($secondsPerYear / 86400), + ); + } else { + + $dayofweek = self::dayOfWeek($year, $month, $numberdays); + $array = array( + 'seconds' => $seconds, + 'minutes' => $minutes, + 'hours' => $hours, + 'mday' => $numberdays, + 'wday' => $dayofweek, + 'mon' => $month, + 'year' => $year, + 'yday' => floor($secondsPerYear / 86400), + 'weekday' => gmdate('l', 86400 * (3 + $dayofweek)), + 'month' => gmdate('F', mktime(0, 0, 0, $month, 1, 1971)), + 0 => $otimestamp + ); + } + + if (isset(self::$_cache)) { + if (self::$_cacheTags) { + self::$_cache->save( serialize($array), $id, array('Zend_Date')); + } else { + self::$_cache->save( serialize($array), $id); + } + } + + return $array; + } + + /** + * Internal getWeekNumber function for handling 64bit timestamps + * + * Returns the ISO 8601 week number of a given date + * + * @param integer $year + * @param integer $month + * @param integer $day + * @return integer + */ + protected function weekNumber($year, $month, $day) + { + if ((1901 < $year) and ($year < 2038)) { + return (int) date('W', mktime(0, 0, 0, $month, $day, $year)); + } + + $dayofweek = self::dayOfWeek($year, $month, $day); + $firstday = self::dayOfWeek($year, 1, 1); + if (($month == 1) and (($firstday < 1) or ($firstday > 4)) and ($day < 4)) { + $firstday = self::dayOfWeek($year - 1, 1, 1); + $month = 12; + $day = 31; + + } else if (($month == 12) and ((self::dayOfWeek($year + 1, 1, 1) < 5) and + (self::dayOfWeek($year + 1, 1, 1) > 0))) { + return 1; + } + + return intval (((self::dayOfWeek($year, 1, 1) < 5) and (self::dayOfWeek($year, 1, 1) > 0)) + + 4 * ($month - 1) + (2 * ($month - 1) + ($day - 1) + $firstday - $dayofweek + 6) * 36 / 256); + } + + /** + * Internal _range function + * Sets the value $a to be in the range of [0, $b] + * + * @param float $a - value to correct + * @param float $b - maximum range to set + */ + private function _range($a, $b) { + while ($a < 0) { + $a += $b; + } + while ($a >= $b) { + $a -= $b; + } + return $a; + } + + /** + * Calculates the sunrise or sunset based on a location + * + * @param array $location Location for calculation MUST include 'latitude', 'longitude', 'horizon' + * @param bool $horizon true: sunrise; false: sunset + * @return mixed - false: midnight sun, integer: + */ + protected function calcSun($location, $horizon, $rise = false) + { + // timestamp within 32bit + if (abs($this->_unixTimestamp) <= 0x7FFFFFFF) { + if ($rise === false) { + return date_sunset($this->_unixTimestamp, SUNFUNCS_RET_TIMESTAMP, $location['latitude'], + $location['longitude'], 90 + $horizon, $this->getGmtOffset() / 3600); + } + return date_sunrise($this->_unixTimestamp, SUNFUNCS_RET_TIMESTAMP, $location['latitude'], + $location['longitude'], 90 + $horizon, $this->getGmtOffset() / 3600); + } + + // self calculation - timestamp bigger than 32bit + // fix circle values + $quarterCircle = 0.5 * M_PI; + $halfCircle = M_PI; + $threeQuarterCircle = 1.5 * M_PI; + $fullCircle = 2 * M_PI; + + // radiant conversion for coordinates + $radLatitude = $location['latitude'] * $halfCircle / 180; + $radLongitude = $location['longitude'] * $halfCircle / 180; + + // get solar coordinates + $tmpRise = $rise ? $quarterCircle : $threeQuarterCircle; + $radDay = $this->date('z',$this->_unixTimestamp) + ($tmpRise - $radLongitude) / $fullCircle; + + // solar anomoly and longitude + $solAnomoly = $radDay * 0.017202 - 0.0574039; + $solLongitude = $solAnomoly + 0.0334405 * sin($solAnomoly); + $solLongitude += 4.93289 + 3.49066E-4 * sin(2 * $solAnomoly); + + // get quadrant + $solLongitude = $this->_range($solLongitude, $fullCircle); + + if (($solLongitude / $quarterCircle) - intval($solLongitude / $quarterCircle) == 0) { + $solLongitude += 4.84814E-6; + } + + // solar ascension + $solAscension = sin($solLongitude) / cos($solLongitude); + $solAscension = atan2(0.91746 * $solAscension, 1); + + // adjust quadrant + if ($solLongitude > $threeQuarterCircle) { + $solAscension += $fullCircle; + } else if ($solLongitude > $quarterCircle) { + $solAscension += $halfCircle; + } + + // solar declination + $solDeclination = 0.39782 * sin($solLongitude); + $solDeclination /= sqrt(-$solDeclination * $solDeclination + 1); + $solDeclination = atan2($solDeclination, 1); + + $solHorizon = $horizon - sin($solDeclination) * sin($radLatitude); + $solHorizon /= cos($solDeclination) * cos($radLatitude); + + // midnight sun, always night + if (abs($solHorizon) > 1) { + return false; + } + + $solHorizon /= sqrt(-$solHorizon * $solHorizon + 1); + $solHorizon = $quarterCircle - atan2($solHorizon, 1); + + if ($rise) { + $solHorizon = $fullCircle - $solHorizon; + } + + // time calculation + $localTime = $solHorizon + $solAscension - 0.0172028 * $radDay - 1.73364; + $universalTime = $localTime - $radLongitude; + + // determinate quadrant + $universalTime = $this->_range($universalTime, $fullCircle); + + // radiant to hours + $universalTime *= 24 / $fullCircle; + + // convert to time + $hour = intval($universalTime); + $universalTime = ($universalTime - $hour) * 60; + $min = intval($universalTime); + $universalTime = ($universalTime - $min) * 60; + $sec = intval($universalTime); + + return $this->mktime($hour, $min, $sec, $this->date('m', $this->_unixTimestamp), + $this->date('j', $this->_unixTimestamp), $this->date('Y', $this->_unixTimestamp), + -1, true); + } + + /** + * Sets a new timezone for calculation of $this object's gmt offset. + * For a list of supported timezones look here: http://php.net/timezones + * If no timezone can be detected or the given timezone is wrong UTC will be set. + * + * @param string $zone OPTIONAL timezone for date calculation; defaults to date_default_timezone_get() + * @return Zend_Date_DateObject Provides fluent interface + * @throws Zend_Date_Exception + */ + public function setTimezone($zone = null) + { + $oldzone = @date_default_timezone_get(); + if ($zone === null) { + $zone = $oldzone; + } + + // throw an error on false input, but only if the new date extension is available + if (function_exists('timezone_open')) { + if (!@timezone_open($zone)) { + throw new Zend_Date_Exception("timezone ($zone) is not a known timezone", 0, null, $zone); + } + } + // this can generate an error if the date extension is not available and a false timezone is given + $result = @date_default_timezone_set($zone); + if ($result === true) { + $this->_offset = mktime(0, 0, 0, 1, 2, 1970) - gmmktime(0, 0, 0, 1, 2, 1970); + $this->_timezone = $zone; + } + date_default_timezone_set($oldzone); + + if (($zone == 'UTC') or ($zone == 'GMT')) { + $this->_dst = false; + } else { + $this->_dst = true; + } + + return $this; + } + + /** + * Return the timezone of $this object. + * The timezone is initially set when the object is instantiated. + * + * @return string actual set timezone string + */ + public function getTimezone() + { + return $this->_timezone; + } + + /** + * Return the offset to GMT of $this object's timezone. + * The offset to GMT is initially set when the object is instantiated using the currently, + * in effect, default timezone for PHP functions. + * + * @return integer seconds difference between GMT timezone and timezone when object was instantiated + */ + public function getGmtOffset() + { + $date = $this->getDateParts($this->getUnixTimestamp(), true); + $zone = @date_default_timezone_get(); + $result = @date_default_timezone_set($this->_timezone); + if ($result === true) { + $offset = $this->mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], $date['year'], false) + - $this->mktime($date['hours'], $date['minutes'], $date['seconds'], + $date['mon'], $date['mday'], $date['year'], true); + } + date_default_timezone_set($zone); + + return $offset; + } + + /** + * Internal method to check if the given cache supports tags + * + * @param Zend_Cache $cache + */ + protected static function _getTagSupportForCache() + { + $backend = self::$_cache->getBackend(); + if ($backend instanceof Zend_Cache_Backend_ExtendedInterface) { + $cacheOptions = $backend->getCapabilities(); + self::$_cacheTags = $cacheOptions['tags']; + } else { + self::$_cacheTags = false; + } + + return self::$_cacheTags; + } +} |