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<?php |
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/** |
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* Zend Framework |
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* |
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* LICENSE |
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* |
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* This source file is subject to the new BSD license that is bundled |
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* with this package in the file LICENSE.txt. |
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* It is also available through the world-wide-web at this URL: |
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* http://framework.zend.com/license/new-bsd |
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* If you did not receive a copy of the license and are unable to |
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* obtain it through the world-wide-web, please send an email |
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* to [email protected] so we can send you a copy immediately. |
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* |
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* @category Zend |
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* @package Zend_Date |
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) |
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* @version $Id: DateObject.php 23775 2011-03-01 17:25:24Z ralph $ |
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* @license http://framework.zend.com/license/new-bsd New BSD License |
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*/ |
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/** |
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* @category Zend |
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* @package Zend_Date |
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* @subpackage Zend_Date_DateObject |
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) |
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* @license http://framework.zend.com/license/new-bsd New BSD License |
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*/ |
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abstract class Zend_Date_DateObject { |
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/** |
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* UNIX Timestamp |
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*/ |
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private $_unixTimestamp; |
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protected static $_cache = null; |
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protected static $_cacheTags = false; |
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protected static $_defaultOffset = 0; |
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/** |
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* active timezone |
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*/ |
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private $_timezone = 'UTC'; |
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private $_offset = 0; |
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private $_syncronised = 0; |
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// turn off DST correction if UTC or GMT |
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protected $_dst = true; |
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/** |
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* Table of Monthdays |
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*/ |
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private static $_monthTable = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); |
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/** |
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* Table of Years |
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*/ |
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private static $_yearTable = array( |
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1970 => 0, 1960 => -315619200, 1950 => -631152000, |
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1940 => -946771200, 1930 => -1262304000, 1920 => -1577923200, |
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1910 => -1893456000, 1900 => -2208988800, 1890 => -2524521600, |
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1880 => -2840140800, 1870 => -3155673600, 1860 => -3471292800, |
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1850 => -3786825600, 1840 => -4102444800, 1830 => -4417977600, |
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1820 => -4733596800, 1810 => -5049129600, 1800 => -5364662400, |
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1790 => -5680195200, 1780 => -5995814400, 1770 => -6311347200, |
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1760 => -6626966400, 1750 => -6942499200, 1740 => -7258118400, |
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1730 => -7573651200, 1720 => -7889270400, 1710 => -8204803200, |
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1700 => -8520336000, 1690 => -8835868800, 1680 => -9151488000, |
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1670 => -9467020800, 1660 => -9782640000, 1650 => -10098172800, |
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1640 => -10413792000, 1630 => -10729324800, 1620 => -11044944000, |
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1610 => -11360476800, 1600 => -11676096000); |
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/** |
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* Set this object to have a new UNIX timestamp. |
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* |
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* @param string|integer $timestamp OPTIONAL timestamp; defaults to local time using time() |
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* @return string|integer old timestamp |
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* @throws Zend_Date_Exception |
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*/ |
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protected function setUnixTimestamp($timestamp = null) |
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{ |
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$old = $this->_unixTimestamp; |
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if (is_numeric($timestamp)) { |
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$this->_unixTimestamp = $timestamp; |
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} else if ($timestamp === null) { |
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$this->_unixTimestamp = time(); |
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} else { |
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require_once 'Zend/Date/Exception.php'; |
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throw new Zend_Date_Exception('\'' . $timestamp . '\' is not a valid UNIX timestamp', 0, null, $timestamp); |
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} |
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return $old; |
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} |
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/** |
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* Returns this object's UNIX timestamp |
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* A timestamp greater then the integer range will be returned as string |
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* This function does not return the timestamp as object. Use copy() instead. |
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* |
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* @return integer|string timestamp |
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*/ |
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protected function getUnixTimestamp() |
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{ |
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if ($this->_unixTimestamp === intval($this->_unixTimestamp)) { |
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return (int) $this->_unixTimestamp; |
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} else { |
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return (string) $this->_unixTimestamp; |
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} |
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} |
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/** |
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* Internal function. |
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* Returns time(). This method exists to allow unit tests to work-around methods that might otherwise |
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* be hard-coded to use time(). For example, this makes it possible to test isYesterday() in Date.php. |
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* |
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* @param integer $sync OPTIONAL time syncronisation value |
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* @return integer timestamp |
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*/ |
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protected function _getTime($sync = null) |
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{ |
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if ($sync !== null) { |
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$this->_syncronised = round($sync); |
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} |
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return (time() + $this->_syncronised); |
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} |
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/** |
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* Internal mktime function used by Zend_Date. |
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* The timestamp returned by mktime() can exceed the precision of traditional UNIX timestamps, |
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* by allowing PHP to auto-convert to using a float value. |
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* |
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* Returns a timestamp relative to 1970/01/01 00:00:00 GMT/UTC. |
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* DST (Summer/Winter) is depriciated since php 5.1.0. |
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* Year has to be 4 digits otherwise it would be recognised as |
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* year 70 AD instead of 1970 AD as expected !! |
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* |
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* @param integer $hour |
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* @param integer $minute |
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* @param integer $second |
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* @param integer $month |
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* @param integer $day |
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* @param integer $year |
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* @param boolean $gmt OPTIONAL true = other arguments are for UTC time, false = arguments are for local time/date |
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* @return integer|float timestamp (number of seconds elapsed relative to 1970/01/01 00:00:00 GMT/UTC) |
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*/ |
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protected function mktime($hour, $minute, $second, $month, $day, $year, $gmt = false) |
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{ |
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// complete date but in 32bit timestamp - use PHP internal |
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if ((1901 < $year) and ($year < 2038)) { |
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$oldzone = @date_default_timezone_get(); |
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// Timezone also includes DST settings, therefor substracting the GMT offset is not enough |
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// We have to set the correct timezone to get the right value |
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if (($this->_timezone != $oldzone) and ($gmt === false)) { |
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date_default_timezone_set($this->_timezone); |
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} |
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$result = ($gmt) ? @gmmktime($hour, $minute, $second, $month, $day, $year) |
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: @mktime($hour, $minute, $second, $month, $day, $year); |
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date_default_timezone_set($oldzone); |
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return $result; |
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} |
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if ($gmt !== true) { |
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$second += $this->_offset; |
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} |
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if (isset(self::$_cache)) { |
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$id = strtr('Zend_DateObject_mkTime_' . $this->_offset . '_' . $year.$month.$day.'_'.$hour.$minute.$second . '_'.(int)$gmt, '-','_'); |
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if ($result = self::$_cache->load($id)) { |
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return unserialize($result); |
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} |
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} |
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// date to integer |
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$day = intval($day); |
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$month = intval($month); |
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$year = intval($year); |
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// correct months > 12 and months < 1 |
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if ($month > 12) { |
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$overlap = floor($month / 12); |
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$year += $overlap; |
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$month -= $overlap * 12; |
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} else { |
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$overlap = ceil((1 - $month) / 12); |
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$year -= $overlap; |
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$month += $overlap * 12; |
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} |
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$date = 0; |
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if ($year >= 1970) { |
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// Date is after UNIX epoch |
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// go through leapyears |
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// add months from latest given year |
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for ($count = 1970; $count <= $year; $count++) { |
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$leapyear = self::isYearLeapYear($count); |
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if ($count < $year) { |
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$date += 365; |
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if ($leapyear === true) { |
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$date++; |
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} |
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} else { |
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for ($mcount = 0; $mcount < ($month - 1); $mcount++) { |
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$date += self::$_monthTable[$mcount]; |
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if (($leapyear === true) and ($mcount == 1)) { |
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$date++; |
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} |
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} |
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} |
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} |
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$date += $day - 1; |
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$date = (($date * 86400) + ($hour * 3600) + ($minute * 60) + $second); |
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} else { |
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// Date is before UNIX epoch |
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// go through leapyears |
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// add months from latest given year |
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for ($count = 1969; $count >= $year; $count--) { |
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$leapyear = self::isYearLeapYear($count); |
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if ($count > $year) |
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{ |
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$date += 365; |
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if ($leapyear === true) |
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$date++; |
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} else { |
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for ($mcount = 11; $mcount > ($month - 1); $mcount--) { |
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$date += self::$_monthTable[$mcount]; |
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if (($leapyear === true) and ($mcount == 2)) { |
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$date++; |
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} |
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} |
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} |
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} |
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$date += (self::$_monthTable[$month - 1] - $day); |
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$date = -(($date * 86400) + (86400 - (($hour * 3600) + ($minute * 60) + $second))); |
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// gregorian correction for 5.Oct.1582 |
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if ($date < -12220185600) { |
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$date += 864000; |
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} else if ($date < -12219321600) { |
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$date = -12219321600; |
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} |
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} |
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if (isset(self::$_cache)) { |
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if (self::$_cacheTags) { |
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self::$_cache->save( serialize($date), $id, array('Zend_Date')); |
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} else { |
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self::$_cache->save( serialize($date), $id); |
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} |
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} |
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return $date; |
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} |
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/** |
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* Returns true, if given $year is a leap year. |
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* |
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* @param integer $year |
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* @return boolean true, if year is leap year |
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*/ |
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protected static function isYearLeapYear($year) |
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{ |
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// all leapyears can be divided through 4 |
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if (($year % 4) != 0) { |
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return false; |
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} |
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// all leapyears can be divided through 400 |
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if ($year % 400 == 0) { |
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return true; |
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} else if (($year > 1582) and ($year % 100 == 0)) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Internal mktime function used by Zend_Date for handling 64bit timestamps. |
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* |
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* Returns a formatted date for a given timestamp. |
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* |
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* @param string $format format for output |
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* @param mixed $timestamp |
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* @param boolean $gmt OPTIONAL true = other arguments are for UTC time, false = arguments are for local time/date |
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* @return string |
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*/ |
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protected function date($format, $timestamp = null, $gmt = false) |
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{ |
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$oldzone = @date_default_timezone_get(); |
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if ($this->_timezone != $oldzone) { |
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date_default_timezone_set($this->_timezone); |
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} |
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if ($timestamp === null) { |
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$result = ($gmt) ? @gmdate($format) : @date($format); |
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date_default_timezone_set($oldzone); |
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return $result; |
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} |
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|
|
if (abs($timestamp) <= 0x7FFFFFFF) { |
|
315
|
|
|
$result = ($gmt) ? @gmdate($format, $timestamp) : @date($format, $timestamp); |
|
316
|
|
|
date_default_timezone_set($oldzone); |
|
317
|
|
|
return $result; |
|
318
|
|
|
} |
|
319
|
|
|
|
|
320
|
|
|
$jump = false; |
|
321
|
|
|
$origstamp = $timestamp; |
|
322
|
|
|
if (isset(self::$_cache)) { |
|
323
|
|
|
$idstamp = strtr('Zend_DateObject_date_' . $this->_offset . '_'. $timestamp . '_'.(int)$gmt, '-','_'); |
|
324
|
|
|
if ($result2 = self::$_cache->load($idstamp)) { |
|
325
|
|
|
$timestamp = unserialize($result2); |
|
326
|
|
|
$jump = true; |
|
327
|
|
|
} |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
// check on false or null alone fails |
|
331
|
|
|
if (empty($gmt) and empty($jump)) { |
|
332
|
|
|
$tempstamp = $timestamp; |
|
333
|
|
|
if ($tempstamp > 0) { |
|
334
|
|
|
while (abs($tempstamp) > 0x7FFFFFFF) { |
|
335
|
|
|
$tempstamp -= (86400 * 23376); |
|
336
|
|
|
} |
|
337
|
|
|
|
|
338
|
|
|
$dst = date("I", $tempstamp); |
|
339
|
|
|
if ($dst === 1) { |
|
340
|
|
|
$timestamp += 3600; |
|
341
|
|
|
} |
|
342
|
|
|
|
|
343
|
|
|
$temp = date('Z', $tempstamp); |
|
344
|
|
|
$timestamp += $temp; |
|
345
|
|
|
} |
|
346
|
|
|
|
|
347
|
|
|
if (isset(self::$_cache)) { |
|
348
|
|
|
if (self::$_cacheTags) { |
|
349
|
|
|
self::$_cache->save( serialize($timestamp), $idstamp, array('Zend_Date')); |
|
350
|
|
|
} else { |
|
351
|
|
|
self::$_cache->save( serialize($timestamp), $idstamp); |
|
352
|
|
|
} |
|
353
|
|
|
} |
|
354
|
|
|
} |
|
355
|
|
|
|
|
356
|
|
|
if (($timestamp < 0) and ($gmt !== true)) { |
|
357
|
|
|
$timestamp -= $this->_offset; |
|
358
|
|
|
} |
|
359
|
|
|
|
|
360
|
|
|
date_default_timezone_set($oldzone); |
|
361
|
|
|
$date = $this->getDateParts($timestamp, true); |
|
362
|
|
|
$length = strlen($format); |
|
363
|
|
|
$output = ''; |
|
364
|
|
|
|
|
365
|
|
|
for ($i = 0; $i < $length; $i++) { |
|
366
|
|
|
switch($format[$i]) { |
|
367
|
|
|
// day formats |
|
368
|
|
|
case 'd': // day of month, 2 digits, with leading zero, 01 - 31 |
|
369
|
|
|
$output .= (($date['mday'] < 10) ? '0' . $date['mday'] : $date['mday']); |
|
370
|
|
|
break; |
|
371
|
|
|
|
|
372
|
|
|
case 'D': // day of week, 3 letters, Mon - Sun |
|
373
|
|
|
$output .= date('D', 86400 * (3 + self::dayOfWeek($date['year'], $date['mon'], $date['mday']))); |
|
374
|
|
|
break; |
|
375
|
|
|
|
|
376
|
|
|
case 'j': // day of month, without leading zero, 1 - 31 |
|
377
|
|
|
$output .= $date['mday']; |
|
378
|
|
|
break; |
|
379
|
|
|
|
|
380
|
|
|
case 'l': // day of week, full string name, Sunday - Saturday |
|
381
|
|
|
$output .= date('l', 86400 * (3 + self::dayOfWeek($date['year'], $date['mon'], $date['mday']))); |
|
382
|
|
|
break; |
|
383
|
|
|
|
|
384
|
|
|
case 'N': // ISO 8601 numeric day of week, 1 - 7 |
|
385
|
|
|
$day = self::dayOfWeek($date['year'], $date['mon'], $date['mday']); |
|
386
|
|
|
if ($day == 0) { |
|
387
|
|
|
$day = 7; |
|
388
|
|
|
} |
|
389
|
|
|
$output .= $day; |
|
390
|
|
|
break; |
|
391
|
|
|
|
|
392
|
|
|
case 'S': // english suffix for day of month, st nd rd th |
|
393
|
|
|
if (($date['mday'] % 10) == 1) { |
|
394
|
|
|
$output .= 'st'; |
|
395
|
|
|
} else if ((($date['mday'] % 10) == 2) and ($date['mday'] != 12)) { |
|
396
|
|
|
$output .= 'nd'; |
|
397
|
|
|
} else if (($date['mday'] % 10) == 3) { |
|
398
|
|
|
$output .= 'rd'; |
|
399
|
|
|
} else { |
|
400
|
|
|
$output .= 'th'; |
|
401
|
|
|
} |
|
402
|
|
|
break; |
|
403
|
|
|
|
|
404
|
|
|
case 'w': // numeric day of week, 0 - 6 |
|
405
|
|
|
$output .= self::dayOfWeek($date['year'], $date['mon'], $date['mday']); |
|
406
|
|
|
break; |
|
407
|
|
|
|
|
408
|
|
|
case 'z': // day of year, 0 - 365 |
|
409
|
|
|
$output .= $date['yday']; |
|
410
|
|
|
break; |
|
411
|
|
|
|
|
412
|
|
|
|
|
413
|
|
|
// week formats |
|
414
|
|
|
case 'W': // ISO 8601, week number of year |
|
415
|
|
|
$output .= $this->weekNumber($date['year'], $date['mon'], $date['mday']); |
|
416
|
|
|
break; |
|
417
|
|
|
|
|
418
|
|
|
|
|
419
|
|
|
// month formats |
|
420
|
|
|
case 'F': // string month name, january - december |
|
421
|
|
|
$output .= date('F', mktime(0, 0, 0, $date['mon'], 2, 1971)); |
|
422
|
|
|
break; |
|
423
|
|
|
|
|
424
|
|
|
case 'm': // number of month, with leading zeros, 01 - 12 |
|
425
|
|
|
$output .= (($date['mon'] < 10) ? '0' . $date['mon'] : $date['mon']); |
|
426
|
|
|
break; |
|
427
|
|
|
|
|
428
|
|
|
case 'M': // 3 letter month name, Jan - Dec |
|
429
|
|
|
$output .= date('M',mktime(0, 0, 0, $date['mon'], 2, 1971)); |
|
430
|
|
|
break; |
|
431
|
|
|
|
|
432
|
|
|
case 'n': // number of month, without leading zeros, 1 - 12 |
|
433
|
|
|
$output .= $date['mon']; |
|
434
|
|
|
break; |
|
435
|
|
|
|
|
436
|
|
|
case 't': // number of day in month |
|
437
|
|
|
$output .= self::$_monthTable[$date['mon'] - 1]; |
|
438
|
|
|
break; |
|
439
|
|
|
|
|
440
|
|
|
|
|
441
|
|
|
// year formats |
|
442
|
|
|
case 'L': // is leap year ? |
|
443
|
|
|
$output .= (self::isYearLeapYear($date['year'])) ? '1' : '0'; |
|
444
|
|
|
break; |
|
445
|
|
|
|
|
446
|
|
|
case 'o': // ISO 8601 year number |
|
447
|
|
|
$week = $this->weekNumber($date['year'], $date['mon'], $date['mday']); |
|
448
|
|
|
if (($week > 50) and ($date['mon'] == 1)) { |
|
449
|
|
|
$output .= ($date['year'] - 1); |
|
450
|
|
|
} else { |
|
451
|
|
|
$output .= $date['year']; |
|
452
|
|
|
} |
|
453
|
|
|
break; |
|
454
|
|
|
|
|
455
|
|
|
case 'Y': // year number, 4 digits |
|
456
|
|
|
$output .= $date['year']; |
|
457
|
|
|
break; |
|
458
|
|
|
|
|
459
|
|
|
case 'y': // year number, 2 digits |
|
460
|
|
|
$output .= substr($date['year'], strlen($date['year']) - 2, 2); |
|
461
|
|
|
break; |
|
462
|
|
|
|
|
463
|
|
|
|
|
464
|
|
|
// time formats |
|
465
|
|
|
case 'a': // lower case am/pm |
|
466
|
|
|
$output .= (($date['hours'] >= 12) ? 'pm' : 'am'); |
|
467
|
|
|
break; |
|
468
|
|
|
|
|
469
|
|
|
case 'A': // upper case am/pm |
|
470
|
|
|
$output .= (($date['hours'] >= 12) ? 'PM' : 'AM'); |
|
471
|
|
|
break; |
|
472
|
|
|
|
|
473
|
|
|
case 'B': // swatch internet time |
|
474
|
|
|
$dayseconds = ($date['hours'] * 3600) + ($date['minutes'] * 60) + $date['seconds']; |
|
475
|
|
|
if ($gmt === true) { |
|
476
|
|
|
$dayseconds += 3600; |
|
477
|
|
|
} |
|
478
|
|
|
$output .= (int) (($dayseconds % 86400) / 86.4); |
|
479
|
|
|
break; |
|
480
|
|
|
|
|
481
|
|
|
case 'g': // hours without leading zeros, 12h format |
|
482
|
|
|
if ($date['hours'] > 12) { |
|
483
|
|
|
$hour = $date['hours'] - 12; |
|
484
|
|
|
} else { |
|
485
|
|
|
if ($date['hours'] == 0) { |
|
486
|
|
|
$hour = '12'; |
|
487
|
|
|
} else { |
|
488
|
|
|
$hour = $date['hours']; |
|
489
|
|
|
} |
|
490
|
|
|
} |
|
491
|
|
|
$output .= $hour; |
|
492
|
|
|
break; |
|
493
|
|
|
|
|
494
|
|
|
case 'G': // hours without leading zeros, 24h format |
|
495
|
|
|
$output .= $date['hours']; |
|
496
|
|
|
break; |
|
497
|
|
|
|
|
498
|
|
|
case 'h': // hours with leading zeros, 12h format |
|
499
|
|
|
if ($date['hours'] > 12) { |
|
500
|
|
|
$hour = $date['hours'] - 12; |
|
501
|
|
|
} else { |
|
502
|
|
|
if ($date['hours'] == 0) { |
|
503
|
|
|
$hour = '12'; |
|
504
|
|
|
} else { |
|
505
|
|
|
$hour = $date['hours']; |
|
506
|
|
|
} |
|
507
|
|
|
} |
|
508
|
|
|
$output .= (($hour < 10) ? '0'.$hour : $hour); |
|
509
|
|
|
break; |
|
510
|
|
|
|
|
511
|
|
|
case 'H': // hours with leading zeros, 24h format |
|
512
|
|
|
$output .= (($date['hours'] < 10) ? '0' . $date['hours'] : $date['hours']); |
|
513
|
|
|
break; |
|
514
|
|
|
|
|
515
|
|
|
case 'i': // minutes with leading zeros |
|
516
|
|
|
$output .= (($date['minutes'] < 10) ? '0' . $date['minutes'] : $date['minutes']); |
|
517
|
|
|
break; |
|
518
|
|
|
|
|
519
|
|
|
case 's': // seconds with leading zeros |
|
520
|
|
|
$output .= (($date['seconds'] < 10) ? '0' . $date['seconds'] : $date['seconds']); |
|
521
|
|
|
break; |
|
522
|
|
|
|
|
523
|
|
|
|
|
524
|
|
|
// timezone formats |
|
525
|
|
|
case 'e': // timezone identifier |
|
526
|
|
|
if ($gmt === true) { |
|
527
|
|
|
$output .= gmdate('e', mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
528
|
|
|
$date['mon'], $date['mday'], 2000)); |
|
529
|
|
|
} else { |
|
530
|
|
|
$output .= date('e', mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
531
|
|
|
$date['mon'], $date['mday'], 2000)); |
|
532
|
|
|
} |
|
533
|
|
|
break; |
|
534
|
|
|
|
|
535
|
|
|
case 'I': // daylight saving time or not |
|
536
|
|
|
if ($gmt === true) { |
|
537
|
|
|
$output .= gmdate('I', mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
538
|
|
|
$date['mon'], $date['mday'], 2000)); |
|
539
|
|
|
} else { |
|
540
|
|
|
$output .= date('I', mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
541
|
|
|
$date['mon'], $date['mday'], 2000)); |
|
542
|
|
|
} |
|
543
|
|
|
break; |
|
544
|
|
|
|
|
545
|
|
|
case 'O': // difference to GMT in hours |
|
546
|
|
|
$gmtstr = ($gmt === true) ? 0 : $this->getGmtOffset(); |
|
547
|
|
|
$output .= sprintf('%s%04d', ($gmtstr <= 0) ? '+' : '-', abs($gmtstr) / 36); |
|
548
|
|
|
break; |
|
549
|
|
|
|
|
550
|
|
|
case 'P': // difference to GMT with colon |
|
551
|
|
|
$gmtstr = ($gmt === true) ? 0 : $this->getGmtOffset(); |
|
552
|
|
|
$gmtstr = sprintf('%s%04d', ($gmtstr <= 0) ? '+' : '-', abs($gmtstr) / 36); |
|
553
|
|
|
$output = $output . substr($gmtstr, 0, 3) . ':' . substr($gmtstr, 3); |
|
554
|
|
|
break; |
|
555
|
|
|
|
|
556
|
|
|
case 'T': // timezone settings |
|
557
|
|
|
if ($gmt === true) { |
|
558
|
|
|
$output .= gmdate('T', mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
559
|
|
|
$date['mon'], $date['mday'], 2000)); |
|
560
|
|
|
} else { |
|
561
|
|
|
$output .= date('T', mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
562
|
|
|
$date['mon'], $date['mday'], 2000)); |
|
563
|
|
|
} |
|
564
|
|
|
break; |
|
565
|
|
|
|
|
566
|
|
|
case 'Z': // timezone offset in seconds |
|
567
|
|
|
$output .= ($gmt === true) ? 0 : -$this->getGmtOffset(); |
|
568
|
|
|
break; |
|
569
|
|
|
|
|
570
|
|
|
|
|
571
|
|
|
// complete time formats |
|
572
|
|
|
case 'c': // ISO 8601 date format |
|
573
|
|
|
$difference = $this->getGmtOffset(); |
|
574
|
|
|
$difference = sprintf('%s%04d', ($difference <= 0) ? '+' : '-', abs($difference) / 36); |
|
575
|
|
|
$difference = substr($difference, 0, 3) . ':' . substr($difference, 3); |
|
576
|
|
|
$output .= $date['year'] . '-' |
|
577
|
|
|
. (($date['mon'] < 10) ? '0' . $date['mon'] : $date['mon']) . '-' |
|
578
|
|
|
. (($date['mday'] < 10) ? '0' . $date['mday'] : $date['mday']) . 'T' |
|
579
|
|
|
. (($date['hours'] < 10) ? '0' . $date['hours'] : $date['hours']) . ':' |
|
580
|
|
|
. (($date['minutes'] < 10) ? '0' . $date['minutes'] : $date['minutes']) . ':' |
|
581
|
|
|
. (($date['seconds'] < 10) ? '0' . $date['seconds'] : $date['seconds']) |
|
582
|
|
|
. $difference; |
|
583
|
|
|
break; |
|
584
|
|
|
|
|
585
|
|
|
case 'r': // RFC 2822 date format |
|
586
|
|
|
$difference = $this->getGmtOffset(); |
|
587
|
|
|
$difference = sprintf('%s%04d', ($difference <= 0) ? '+' : '-', abs($difference) / 36); |
|
588
|
|
|
$output .= gmdate('D', 86400 * (3 + self::dayOfWeek($date['year'], $date['mon'], $date['mday']))) . ', ' |
|
589
|
|
|
. (($date['mday'] < 10) ? '0' . $date['mday'] : $date['mday']) . ' ' |
|
590
|
|
|
. date('M', mktime(0, 0, 0, $date['mon'], 2, 1971)) . ' ' |
|
591
|
|
|
. $date['year'] . ' ' |
|
592
|
|
|
. (($date['hours'] < 10) ? '0' . $date['hours'] : $date['hours']) . ':' |
|
593
|
|
|
. (($date['minutes'] < 10) ? '0' . $date['minutes'] : $date['minutes']) . ':' |
|
594
|
|
|
. (($date['seconds'] < 10) ? '0' . $date['seconds'] : $date['seconds']) . ' ' |
|
595
|
|
|
. $difference; |
|
596
|
|
|
break; |
|
597
|
|
|
|
|
598
|
|
|
case 'U': // Unix timestamp |
|
599
|
|
|
$output .= $origstamp; |
|
600
|
|
|
break; |
|
601
|
|
|
|
|
602
|
|
|
|
|
603
|
|
|
// special formats |
|
604
|
|
|
case "\\": // next letter to print with no format |
|
605
|
|
|
$i++; |
|
606
|
|
|
if ($i < $length) { |
|
607
|
|
|
$output .= $format[$i]; |
|
608
|
|
|
} |
|
609
|
|
|
break; |
|
610
|
|
|
|
|
611
|
|
|
default: // letter is no format so add it direct |
|
612
|
|
|
$output .= $format[$i]; |
|
613
|
|
|
break; |
|
614
|
|
|
} |
|
615
|
|
|
} |
|
616
|
|
|
|
|
617
|
|
|
return (string) $output; |
|
618
|
|
|
} |
|
619
|
|
|
|
|
620
|
|
|
/** |
|
621
|
|
|
* Returns the day of week for a Gregorian calendar date. |
|
622
|
|
|
* 0 = sunday, 6 = saturday |
|
623
|
|
|
* |
|
624
|
|
|
* @param integer $year |
|
625
|
|
|
* @param integer $month |
|
626
|
|
|
* @param integer $day |
|
627
|
|
|
* @return integer dayOfWeek |
|
628
|
|
|
*/ |
|
629
|
|
|
protected static function dayOfWeek($year, $month, $day) |
|
630
|
|
|
{ |
|
631
|
|
|
if ((1901 < $year) and ($year < 2038)) { |
|
632
|
|
|
return (int) date('w', mktime(0, 0, 0, $month, $day, $year)); |
|
633
|
|
|
} |
|
634
|
|
|
|
|
635
|
|
|
// gregorian correction |
|
636
|
|
|
$correction = 0; |
|
637
|
|
|
if (($year < 1582) or (($year == 1582) and (($month < 10) or (($month == 10) && ($day < 15))))) { |
|
638
|
|
|
$correction = 3; |
|
639
|
|
|
} |
|
640
|
|
|
|
|
641
|
|
|
if ($month > 2) { |
|
642
|
|
|
$month -= 2; |
|
643
|
|
|
} else { |
|
644
|
|
|
$month += 10; |
|
645
|
|
|
$year--; |
|
646
|
|
|
} |
|
647
|
|
|
|
|
648
|
|
|
$day = floor((13 * $month - 1) / 5) + $day + ($year % 100) + floor(($year % 100) / 4); |
|
649
|
|
|
$day += floor(($year / 100) / 4) - 2 * floor($year / 100) + 77 + $correction; |
|
650
|
|
|
|
|
651
|
|
|
return (int) ($day - 7 * floor($day / 7)); |
|
652
|
|
|
} |
|
653
|
|
|
|
|
654
|
|
|
/** |
|
655
|
|
|
* Internal getDateParts function for handling 64bit timestamps, similar to: |
|
656
|
|
|
* http://www.php.net/getdate |
|
657
|
|
|
* |
|
658
|
|
|
* Returns an array of date parts for $timestamp, relative to 1970/01/01 00:00:00 GMT/UTC. |
|
659
|
|
|
* |
|
660
|
|
|
* $fast specifies ALL date parts should be returned (slower) |
|
661
|
|
|
* Default is false, and excludes $dayofweek, weekday, month and timestamp from parts returned. |
|
662
|
|
|
* |
|
663
|
|
|
* @param mixed $timestamp |
|
664
|
|
|
* @param boolean $fast OPTIONAL defaults to fast (false), resulting in fewer date parts |
|
665
|
|
|
* @return array |
|
666
|
|
|
*/ |
|
667
|
|
|
protected function getDateParts($timestamp = null, $fast = null) |
|
668
|
|
|
{ |
|
669
|
|
|
|
|
670
|
|
|
// actual timestamp |
|
671
|
|
|
if (!is_numeric($timestamp)) { |
|
672
|
|
|
return getdate(); |
|
673
|
|
|
} |
|
674
|
|
|
|
|
675
|
|
|
// 32bit timestamp |
|
676
|
|
|
if (abs($timestamp) <= 0x7FFFFFFF) { |
|
677
|
|
|
return @getdate((int) $timestamp); |
|
678
|
|
|
} |
|
679
|
|
|
|
|
680
|
|
|
if (isset(self::$_cache)) { |
|
681
|
|
|
$id = strtr('Zend_DateObject_getDateParts_' . $timestamp.'_'.(int)$fast, '-','_'); |
|
682
|
|
|
if ($result = self::$_cache->load($id)) { |
|
683
|
|
|
return unserialize($result); |
|
684
|
|
|
} |
|
685
|
|
|
} |
|
686
|
|
|
|
|
687
|
|
|
$otimestamp = $timestamp; |
|
688
|
|
|
$numday = 0; |
|
689
|
|
|
$month = 0; |
|
690
|
|
|
// gregorian correction |
|
691
|
|
|
if ($timestamp < -12219321600) { |
|
692
|
|
|
$timestamp -= 864000; |
|
693
|
|
|
} |
|
694
|
|
|
|
|
695
|
|
|
// timestamp lower 0 |
|
696
|
|
|
if ($timestamp < 0) { |
|
697
|
|
|
$sec = 0; |
|
698
|
|
|
$act = 1970; |
|
699
|
|
|
|
|
700
|
|
|
// iterate through 10 years table, increasing speed |
|
701
|
|
|
foreach(self::$_yearTable as $year => $seconds) { |
|
702
|
|
|
if ($timestamp >= $seconds) { |
|
703
|
|
|
$i = $act; |
|
704
|
|
|
break; |
|
705
|
|
|
} |
|
706
|
|
|
$sec = $seconds; |
|
707
|
|
|
$act = $year; |
|
708
|
|
|
} |
|
709
|
|
|
|
|
710
|
|
|
$timestamp -= $sec; |
|
711
|
|
|
if (!isset($i)) { |
|
712
|
|
|
$i = $act; |
|
713
|
|
|
} |
|
714
|
|
|
|
|
715
|
|
|
// iterate the max last 10 years |
|
716
|
|
|
do { |
|
717
|
|
|
--$i; |
|
718
|
|
|
$day = $timestamp; |
|
719
|
|
|
|
|
720
|
|
|
$timestamp += 31536000; |
|
721
|
|
|
$leapyear = self::isYearLeapYear($i); |
|
722
|
|
|
if ($leapyear === true) { |
|
723
|
|
|
$timestamp += 86400; |
|
724
|
|
|
} |
|
725
|
|
|
|
|
726
|
|
|
if ($timestamp >= 0) { |
|
727
|
|
|
$year = $i; |
|
728
|
|
|
break; |
|
729
|
|
|
} |
|
730
|
|
|
} while ($timestamp < 0); |
|
731
|
|
|
|
|
732
|
|
|
$secondsPerYear = 86400 * ($leapyear ? 366 : 365) + $day; |
|
733
|
|
|
|
|
734
|
|
|
$timestamp = $day; |
|
735
|
|
|
// iterate through months |
|
736
|
|
|
for ($i = 12; --$i >= 0;) { |
|
737
|
|
|
$day = $timestamp; |
|
738
|
|
|
|
|
739
|
|
|
$timestamp += self::$_monthTable[$i] * 86400; |
|
740
|
|
|
if (($leapyear === true) and ($i == 1)) { |
|
741
|
|
|
$timestamp += 86400; |
|
742
|
|
|
} |
|
743
|
|
|
|
|
744
|
|
|
if ($timestamp >= 0) { |
|
745
|
|
|
$month = $i; |
|
746
|
|
|
$numday = self::$_monthTable[$i]; |
|
747
|
|
|
if (($leapyear === true) and ($i == 1)) { |
|
748
|
|
|
++$numday; |
|
749
|
|
|
} |
|
750
|
|
|
break; |
|
751
|
|
|
} |
|
752
|
|
|
} |
|
753
|
|
|
|
|
754
|
|
|
$timestamp = $day; |
|
755
|
|
|
$numberdays = $numday + ceil(($timestamp + 1) / 86400); |
|
756
|
|
|
|
|
757
|
|
|
$timestamp += ($numday - $numberdays + 1) * 86400; |
|
758
|
|
|
$hours = floor($timestamp / 3600); |
|
759
|
|
|
} else { |
|
760
|
|
|
|
|
761
|
|
|
// iterate through years |
|
762
|
|
|
for ($i = 1970;;$i++) { |
|
763
|
|
|
$day = $timestamp; |
|
764
|
|
|
|
|
765
|
|
|
$timestamp -= 31536000; |
|
766
|
|
|
$leapyear = self::isYearLeapYear($i); |
|
767
|
|
|
if ($leapyear === true) { |
|
768
|
|
|
$timestamp -= 86400; |
|
769
|
|
|
} |
|
770
|
|
|
|
|
771
|
|
|
if ($timestamp < 0) { |
|
772
|
|
|
$year = $i; |
|
773
|
|
|
break; |
|
774
|
|
|
} |
|
775
|
|
|
} |
|
776
|
|
|
|
|
777
|
|
|
$secondsPerYear = $day; |
|
778
|
|
|
|
|
779
|
|
|
$timestamp = $day; |
|
780
|
|
|
// iterate through months |
|
781
|
|
|
for ($i = 0; $i <= 11; $i++) { |
|
782
|
|
|
$day = $timestamp; |
|
783
|
|
|
$timestamp -= self::$_monthTable[$i] * 86400; |
|
784
|
|
|
|
|
785
|
|
|
if (($leapyear === true) and ($i == 1)) { |
|
786
|
|
|
$timestamp -= 86400; |
|
787
|
|
|
} |
|
788
|
|
|
|
|
789
|
|
|
if ($timestamp < 0) { |
|
790
|
|
|
$month = $i; |
|
791
|
|
|
$numday = self::$_monthTable[$i]; |
|
792
|
|
|
if (($leapyear === true) and ($i == 1)) { |
|
793
|
|
|
++$numday; |
|
794
|
|
|
} |
|
795
|
|
|
break; |
|
796
|
|
|
} |
|
797
|
|
|
} |
|
798
|
|
|
|
|
799
|
|
|
$timestamp = $day; |
|
800
|
|
|
$numberdays = ceil(($timestamp + 1) / 86400); |
|
801
|
|
|
$timestamp = $timestamp - ($numberdays - 1) * 86400; |
|
802
|
|
|
$hours = floor($timestamp / 3600); |
|
803
|
|
|
} |
|
804
|
|
|
|
|
805
|
|
|
$timestamp -= $hours * 3600; |
|
806
|
|
|
|
|
807
|
|
|
$month += 1; |
|
808
|
|
|
$minutes = floor($timestamp / 60); |
|
809
|
|
|
$seconds = $timestamp - $minutes * 60; |
|
810
|
|
|
|
|
811
|
|
|
if ($fast === true) { |
|
812
|
|
|
$array = array( |
|
813
|
|
|
'seconds' => $seconds, |
|
814
|
|
|
'minutes' => $minutes, |
|
815
|
|
|
'hours' => $hours, |
|
816
|
|
|
'mday' => $numberdays, |
|
817
|
|
|
'mon' => $month, |
|
818
|
|
|
'year' => $year, |
|
819
|
|
|
'yday' => floor($secondsPerYear / 86400), |
|
820
|
|
|
); |
|
821
|
|
|
} else { |
|
822
|
|
|
|
|
823
|
|
|
$dayofweek = self::dayOfWeek($year, $month, $numberdays); |
|
824
|
|
|
$array = array( |
|
825
|
|
|
'seconds' => $seconds, |
|
826
|
|
|
'minutes' => $minutes, |
|
827
|
|
|
'hours' => $hours, |
|
828
|
|
|
'mday' => $numberdays, |
|
829
|
|
|
'wday' => $dayofweek, |
|
830
|
|
|
'mon' => $month, |
|
831
|
|
|
'year' => $year, |
|
832
|
|
|
'yday' => floor($secondsPerYear / 86400), |
|
833
|
|
|
'weekday' => gmdate('l', 86400 * (3 + $dayofweek)), |
|
834
|
|
|
'month' => gmdate('F', mktime(0, 0, 0, $month, 1, 1971)), |
|
835
|
|
|
0 => $otimestamp |
|
836
|
|
|
); |
|
837
|
|
|
} |
|
838
|
|
|
|
|
839
|
|
|
if (isset(self::$_cache)) { |
|
840
|
|
|
if (self::$_cacheTags) { |
|
841
|
|
|
self::$_cache->save( serialize($array), $id, array('Zend_Date')); |
|
842
|
|
|
} else { |
|
843
|
|
|
self::$_cache->save( serialize($array), $id); |
|
844
|
|
|
} |
|
845
|
|
|
} |
|
846
|
|
|
|
|
847
|
|
|
return $array; |
|
848
|
|
|
} |
|
849
|
|
|
|
|
850
|
|
|
/** |
|
851
|
|
|
* Internal getWeekNumber function for handling 64bit timestamps |
|
852
|
|
|
* |
|
853
|
|
|
* Returns the ISO 8601 week number of a given date |
|
854
|
|
|
* |
|
855
|
|
|
* @param integer $year |
|
856
|
|
|
* @param integer $month |
|
857
|
|
|
* @param integer $day |
|
858
|
|
|
* @return integer |
|
859
|
|
|
*/ |
|
860
|
|
|
protected function weekNumber($year, $month, $day) |
|
861
|
|
|
{ |
|
862
|
|
|
if ((1901 < $year) and ($year < 2038)) { |
|
863
|
|
|
return (int) date('W', mktime(0, 0, 0, $month, $day, $year)); |
|
864
|
|
|
} |
|
865
|
|
|
|
|
866
|
|
|
$dayofweek = self::dayOfWeek($year, $month, $day); |
|
867
|
|
|
$firstday = self::dayOfWeek($year, 1, 1); |
|
868
|
|
|
if (($month == 1) and (($firstday < 1) or ($firstday > 4)) and ($day < 4)) { |
|
869
|
|
|
$firstday = self::dayOfWeek($year - 1, 1, 1); |
|
870
|
|
|
$month = 12; |
|
871
|
|
|
$day = 31; |
|
872
|
|
|
|
|
873
|
|
|
} else if (($month == 12) and ((self::dayOfWeek($year + 1, 1, 1) < 5) and |
|
874
|
|
|
(self::dayOfWeek($year + 1, 1, 1) > 0))) { |
|
875
|
|
|
return 1; |
|
876
|
|
|
} |
|
877
|
|
|
|
|
878
|
|
|
return intval (((self::dayOfWeek($year, 1, 1) < 5) and (self::dayOfWeek($year, 1, 1) > 0)) + |
|
879
|
|
|
4 * ($month - 1) + (2 * ($month - 1) + ($day - 1) + $firstday - $dayofweek + 6) * 36 / 256); |
|
880
|
|
|
} |
|
881
|
|
|
|
|
882
|
|
|
/** |
|
883
|
|
|
* Internal _range function |
|
884
|
|
|
* Sets the value $a to be in the range of [0, $b] |
|
885
|
|
|
* |
|
886
|
|
|
* @param float $a - value to correct |
|
887
|
|
|
* @param float $b - maximum range to set |
|
888
|
|
|
*/ |
|
889
|
|
|
private function _range($a, $b) { |
|
890
|
|
|
while ($a < 0) { |
|
891
|
|
|
$a += $b; |
|
892
|
|
|
} |
|
893
|
|
|
while ($a >= $b) { |
|
894
|
|
|
$a -= $b; |
|
895
|
|
|
} |
|
896
|
|
|
return $a; |
|
897
|
|
|
} |
|
898
|
|
|
|
|
899
|
|
|
/** |
|
900
|
|
|
* Calculates the sunrise or sunset based on a location |
|
901
|
|
|
* |
|
902
|
|
|
* @param array $location Location for calculation MUST include 'latitude', 'longitude', 'horizon' |
|
903
|
|
|
* @param bool $horizon true: sunrise; false: sunset |
|
904
|
|
|
* @return mixed - false: midnight sun, integer: |
|
905
|
|
|
*/ |
|
906
|
|
|
protected function calcSun($location, $horizon, $rise = false) |
|
907
|
|
|
{ |
|
908
|
|
|
// timestamp within 32bit |
|
909
|
|
|
if (abs($this->_unixTimestamp) <= 0x7FFFFFFF) { |
|
910
|
|
|
if ($rise === false) { |
|
911
|
|
|
return date_sunset($this->_unixTimestamp, SUNFUNCS_RET_TIMESTAMP, $location['latitude'], |
|
912
|
|
|
$location['longitude'], 90 + $horizon, $this->getGmtOffset() / 3600); |
|
913
|
|
|
} |
|
914
|
|
|
return date_sunrise($this->_unixTimestamp, SUNFUNCS_RET_TIMESTAMP, $location['latitude'], |
|
915
|
|
|
$location['longitude'], 90 + $horizon, $this->getGmtOffset() / 3600); |
|
916
|
|
|
} |
|
917
|
|
|
|
|
918
|
|
|
// self calculation - timestamp bigger than 32bit |
|
919
|
|
|
// fix circle values |
|
920
|
|
|
$quarterCircle = 0.5 * M_PI; |
|
921
|
|
|
$halfCircle = M_PI; |
|
922
|
|
|
$threeQuarterCircle = 1.5 * M_PI; |
|
923
|
|
|
$fullCircle = 2 * M_PI; |
|
924
|
|
|
|
|
925
|
|
|
// radiant conversion for coordinates |
|
926
|
|
|
$radLatitude = $location['latitude'] * $halfCircle / 180; |
|
927
|
|
|
$radLongitude = $location['longitude'] * $halfCircle / 180; |
|
928
|
|
|
|
|
929
|
|
|
// get solar coordinates |
|
930
|
|
|
$tmpRise = $rise ? $quarterCircle : $threeQuarterCircle; |
|
931
|
|
|
$radDay = $this->date('z',$this->_unixTimestamp) + ($tmpRise - $radLongitude) / $fullCircle; |
|
932
|
|
|
|
|
933
|
|
|
// solar anomoly and longitude |
|
934
|
|
|
$solAnomoly = $radDay * 0.017202 - 0.0574039; |
|
935
|
|
|
$solLongitude = $solAnomoly + 0.0334405 * sin($solAnomoly); |
|
936
|
|
|
$solLongitude += 4.93289 + 3.49066E-4 * sin(2 * $solAnomoly); |
|
937
|
|
|
|
|
938
|
|
|
// get quadrant |
|
939
|
|
|
$solLongitude = $this->_range($solLongitude, $fullCircle); |
|
940
|
|
|
|
|
941
|
|
|
if (($solLongitude / $quarterCircle) - intval($solLongitude / $quarterCircle) == 0) { |
|
942
|
|
|
$solLongitude += 4.84814E-6; |
|
943
|
|
|
} |
|
944
|
|
|
|
|
945
|
|
|
// solar ascension |
|
946
|
|
|
$solAscension = sin($solLongitude) / cos($solLongitude); |
|
947
|
|
|
$solAscension = atan2(0.91746 * $solAscension, 1); |
|
948
|
|
|
|
|
949
|
|
|
// adjust quadrant |
|
950
|
|
|
if ($solLongitude > $threeQuarterCircle) { |
|
951
|
|
|
$solAscension += $fullCircle; |
|
952
|
|
|
} else if ($solLongitude > $quarterCircle) { |
|
953
|
|
|
$solAscension += $halfCircle; |
|
954
|
|
|
} |
|
955
|
|
|
|
|
956
|
|
|
// solar declination |
|
957
|
|
|
$solDeclination = 0.39782 * sin($solLongitude); |
|
958
|
|
|
$solDeclination /= sqrt(-$solDeclination * $solDeclination + 1); |
|
959
|
|
|
$solDeclination = atan2($solDeclination, 1); |
|
960
|
|
|
|
|
961
|
|
|
$solHorizon = $horizon - sin($solDeclination) * sin($radLatitude); |
|
962
|
|
|
$solHorizon /= cos($solDeclination) * cos($radLatitude); |
|
963
|
|
|
|
|
964
|
|
|
// midnight sun, always night |
|
965
|
|
|
if (abs($solHorizon) > 1) { |
|
966
|
|
|
return false; |
|
967
|
|
|
} |
|
968
|
|
|
|
|
969
|
|
|
$solHorizon /= sqrt(-$solHorizon * $solHorizon + 1); |
|
970
|
|
|
$solHorizon = $quarterCircle - atan2($solHorizon, 1); |
|
971
|
|
|
|
|
972
|
|
|
if ($rise) { |
|
973
|
|
|
$solHorizon = $fullCircle - $solHorizon; |
|
974
|
|
|
} |
|
975
|
|
|
|
|
976
|
|
|
// time calculation |
|
977
|
|
|
$localTime = $solHorizon + $solAscension - 0.0172028 * $radDay - 1.73364; |
|
978
|
|
|
$universalTime = $localTime - $radLongitude; |
|
979
|
|
|
|
|
980
|
|
|
// determinate quadrant |
|
981
|
|
|
$universalTime = $this->_range($universalTime, $fullCircle); |
|
982
|
|
|
|
|
983
|
|
|
// radiant to hours |
|
984
|
|
|
$universalTime *= 24 / $fullCircle; |
|
985
|
|
|
|
|
986
|
|
|
// convert to time |
|
987
|
|
|
$hour = intval($universalTime); |
|
988
|
|
|
$universalTime = ($universalTime - $hour) * 60; |
|
989
|
|
|
$min = intval($universalTime); |
|
990
|
|
|
$universalTime = ($universalTime - $min) * 60; |
|
991
|
|
|
$sec = intval($universalTime); |
|
992
|
|
|
|
|
993
|
|
|
return $this->mktime($hour, $min, $sec, $this->date('m', $this->_unixTimestamp), |
|
994
|
|
|
$this->date('j', $this->_unixTimestamp), $this->date('Y', $this->_unixTimestamp), |
|
995
|
|
|
-1, true); |
|
996
|
|
|
} |
|
997
|
|
|
|
|
998
|
|
|
/** |
|
999
|
|
|
* Sets a new timezone for calculation of $this object's gmt offset. |
|
1000
|
|
|
* For a list of supported timezones look here: http://php.net/timezones |
|
1001
|
|
|
* If no timezone can be detected or the given timezone is wrong UTC will be set. |
|
1002
|
|
|
* |
|
1003
|
|
|
* @param string $zone OPTIONAL timezone for date calculation; defaults to date_default_timezone_get() |
|
1004
|
|
|
* @return Zend_Date_DateObject Provides fluent interface |
|
1005
|
|
|
* @throws Zend_Date_Exception |
|
1006
|
|
|
*/ |
|
1007
|
|
|
public function setTimezone($zone = null) |
|
1008
|
|
|
{ |
|
1009
|
|
|
$oldzone = @date_default_timezone_get(); |
|
1010
|
|
|
if ($zone === null) { |
|
1011
|
|
|
$zone = $oldzone; |
|
1012
|
|
|
} |
|
1013
|
|
|
|
|
1014
|
|
|
// throw an error on false input, but only if the new date extension is available |
|
1015
|
|
|
if (function_exists('timezone_open')) { |
|
1016
|
|
|
if (!@timezone_open($zone)) { |
|
1017
|
|
|
require_once 'Zend/Date/Exception.php'; |
|
1018
|
|
|
throw new Zend_Date_Exception("timezone ($zone) is not a known timezone", 0, null, $zone); |
|
1019
|
|
|
} |
|
1020
|
|
|
} |
|
1021
|
|
|
// this can generate an error if the date extension is not available and a false timezone is given |
|
1022
|
|
|
$result = @date_default_timezone_set($zone); |
|
1023
|
|
|
if ($result === true) { |
|
1024
|
|
|
$this->_offset = mktime(0, 0, 0, 1, 2, 1970) - gmmktime(0, 0, 0, 1, 2, 1970); |
|
1025
|
|
|
$this->_timezone = $zone; |
|
1026
|
|
|
} |
|
1027
|
|
|
date_default_timezone_set($oldzone); |
|
1028
|
|
|
|
|
1029
|
|
|
if (($zone == 'UTC') or ($zone == 'GMT')) { |
|
1030
|
|
|
$this->_dst = false; |
|
1031
|
|
|
} else { |
|
1032
|
|
|
$this->_dst = true; |
|
1033
|
|
|
} |
|
1034
|
|
|
|
|
1035
|
|
|
return $this; |
|
1036
|
|
|
} |
|
1037
|
|
|
|
|
1038
|
|
|
/** |
|
1039
|
|
|
* Return the timezone of $this object. |
|
1040
|
|
|
* The timezone is initially set when the object is instantiated. |
|
1041
|
|
|
* |
|
1042
|
|
|
* @return string actual set timezone string |
|
1043
|
|
|
*/ |
|
1044
|
|
|
public function getTimezone() |
|
1045
|
|
|
{ |
|
1046
|
|
|
return $this->_timezone; |
|
1047
|
|
|
} |
|
1048
|
|
|
|
|
1049
|
|
|
/** |
|
1050
|
|
|
* Return the offset to GMT of $this object's timezone. |
|
1051
|
|
|
* The offset to GMT is initially set when the object is instantiated using the currently, |
|
1052
|
|
|
* in effect, default timezone for PHP functions. |
|
1053
|
|
|
* |
|
1054
|
|
|
* @return integer seconds difference between GMT timezone and timezone when object was instantiated |
|
1055
|
|
|
*/ |
|
1056
|
|
|
public function getGmtOffset() |
|
1057
|
|
|
{ |
|
1058
|
|
|
$date = $this->getDateParts($this->getUnixTimestamp(), true); |
|
1059
|
|
|
$zone = @date_default_timezone_get(); |
|
1060
|
|
|
$result = @date_default_timezone_set($this->_timezone); |
|
1061
|
|
|
if ($result === true) { |
|
1062
|
|
|
$offset = $this->mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
1063
|
|
|
$date['mon'], $date['mday'], $date['year'], false) |
|
1064
|
|
|
- $this->mktime($date['hours'], $date['minutes'], $date['seconds'], |
|
1065
|
|
|
$date['mon'], $date['mday'], $date['year'], true); |
|
1066
|
|
|
} |
|
1067
|
|
|
date_default_timezone_set($zone); |
|
1068
|
|
|
|
|
1069
|
|
|
return $offset; |
|
1070
|
|
|
} |
|
1071
|
|
|
|
|
1072
|
|
|
/** |
|
1073
|
|
|
* Internal method to check if the given cache supports tags |
|
1074
|
|
|
* |
|
1075
|
|
|
* @param Zend_Cache $cache |
|
1076
|
|
|
*/ |
|
1077
|
|
|
protected static function _getTagSupportForCache() |
|
1078
|
|
|
{ |
|
1079
|
|
|
$backend = self::$_cache->getBackend(); |
|
1080
|
|
|
if ($backend instanceof Zend_Cache_Backend_ExtendedInterface) { |
|
1081
|
|
|
$cacheOptions = $backend->getCapabilities(); |
|
1082
|
|
|
self::$_cacheTags = $cacheOptions['tags']; |
|
1083
|
|
|
} else { |
|
1084
|
|
|
self::$_cacheTags = false; |
|
1085
|
|
|
} |
|
1086
|
|
|
|
|
1087
|
|
|
return self::$_cacheTags; |
|
1088
|
|
|
} |
|
1089
|
|
|
} |
|
1090
|
|
|
|
silverstripe /
silverstripe-framework
