--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Date/DateObject.php Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,1089 @@
+<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @version $Id: DateObject.php 22712 2010-07-29 08:24:28Z thomas $
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+/**
+ * @category Zend
+ * @package Zend_Date
+ * @subpackage Zend_Date_DateObject
+ * @copyright Copyright (c) 2005-2010 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 {
+ require_once 'Zend/Date/Exception.php';
+ 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) {
+ $result = ($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)) {
+ require_once 'Zend/Date/Exception.php';
+ 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;
+ }
+}