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<?php/* vim: set expandtab tabstop=4 shiftwidth=4: *//*** Contains the Calendar_Engine_UnixTS class** PHP versions 4 and 5** LICENSE: Redistribution and use in source and binary forms, with or without* modification, are permitted provided that the following conditions are met:* 1. Redistributions of source code must retain the above copyright* notice, this list of conditions and the following disclaimer.* 2. Redistributions in binary form must reproduce the above copyright* notice, this list of conditions and the following disclaimer in the* documentation and/or other materials provided with the distribution.* 3. The name of the author may not be used to endorse or promote products* derived from this software without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.** @category Date and Time* @package Calendar* @author Harry Fuecks <hfuecks@phppatterns.com>* @copyright 2003-2007 Harry Fuecks* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)* @version CVS: $Id: UnixTS.php 269074 2008-11-15 21:21:42Z quipo $* @link http://pear.php.net/package/Calendar*//*** Performs calendar calculations based on the PHP date() function and* Unix timestamps (using PHP's mktime() function).** @category Date and Time* @package Calendar* @author Harry Fuecks <hfuecks@phppatterns.com>* @copyright 2003-2007 Harry Fuecks* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)* @link http://pear.php.net/package/Calendar* @access protected*/class Calendar_Engine_UnixTS /* implements Calendar_Engine_Interface */{/*** Makes sure a given timestamp is only ever parsed once* <pre>* array (* [0] => year (e.g 2003),* [1] => month (e.g 9),* [2] => day (e.g 6),* [3] => hour (e.g 14),* [4] => minute (e.g 34),* [5] => second (e.g 45),* [6] => num days in month (e.g. 31),* [7] => week in year (e.g. 50),* [8] => day in week (e.g. 0 for Sunday)* )* </pre>* Uses a static variable to prevent date() being used twice* for a date which is already known** @param int $stamp Unix timestamp** @return array* @access protected*/function stampCollection($stamp){static $stamps = array();if ( !isset($stamps[$stamp]) ) {$date = @date('Y n j H i s t W w', $stamp);$stamps[$stamp] = sscanf($date, "%d %d %d %d %d %d %d %d %d");}return $stamps[$stamp];}/*** Returns a numeric year given a timestamp** @param int $stamp Unix timestamp** @return int year (e.g. 2003)* @access protected*/function stampToYear($stamp){$date = Calendar_Engine_UnixTS::stampCollection($stamp);return (int)$date[0];}/*** Returns a numeric month given a timestamp** @param int $stamp Unix timestamp** @return int month (e.g. 9)* @access protected*/function stampToMonth($stamp){$date = Calendar_Engine_UnixTS::stampCollection($stamp);return (int)$date[1];}/*** Returns a numeric day given a timestamp** @param int $stamp Unix timestamp** @return int day (e.g. 15)* @access protected*/function stampToDay($stamp){$date = Calendar_Engine_UnixTS::stampCollection($stamp);return (int)$date[2];}/*** Returns a numeric hour given a timestamp** @param int $stamp Unix timestamp** @return int hour (e.g. 13)* @access protected*/function stampToHour($stamp){$date = Calendar_Engine_UnixTS::stampCollection($stamp);return (int)$date[3];}/*** Returns a numeric minute given a timestamp** @param int $stamp Unix timestamp** @return int minute (e.g. 34)* @access protected*/function stampToMinute($stamp){$date = Calendar_Engine_UnixTS::stampCollection($stamp);return (int)$date[4];}/*** Returns a numeric second given a timestamp** @param int $stamp Unix timestamp** @return int second (e.g. 51)* @access protected*/function stampToSecond($stamp){$date = Calendar_Engine_UnixTS::stampCollection($stamp);return (int)$date[5];}/*** Returns a timestamp** @param int $y year (2003)* @param int $m month (9)* @param int $d day (13)* @param int $h hour (13)* @param int $i minute (34)* @param int $s second (53)** @return int Unix timestamp* @access protected*/function dateToStamp($y, $m, $d, $h=0, $i=0, $s=0){static $dates = array();if (!isset($dates[$y][$m][$d][$h][$i][$s])) {$dates[$y][$m][$d][$h][$i][$s] = @mktime($h, $i, $s, $m, $d, $y);}return $dates[$y][$m][$d][$h][$i][$s];}/*** The upper limit on years that the Calendar Engine can work with** @return int (2037)* @access protected*/function getMaxYears(){return 2037;}/*** The lower limit on years that the Calendar Engine can work with** @return int (1970 if it's Windows and 1902 for all other OSs)* @access protected*/function getMinYears(){return $min = strpos(PHP_OS, 'WIN') === false ? 1902 : 1970;}/*** Returns the number of months in a year** @param int $y year** @return int (12)* @access protected*/function getMonthsInYear($y=null){return 12;}/*** Returns the number of days in a month, given year and month** @param int $y year (2003)* @param int $m month (9)** @return int days in month* @access protected*/function getDaysInMonth($y, $m){$stamp = Calendar_Engine_UnixTS::dateToStamp($y, $m, 1);$date = Calendar_Engine_UnixTS::stampCollection($stamp);return $date[6];}/*** Returns numeric representation of the day of the week in a month,* given year and month** @param int $y year (2003)* @param int $m month (9)** @return int from 0 to 6* @access protected*/function getFirstDayInMonth($y, $m){$stamp = Calendar_Engine_UnixTS::dateToStamp($y, $m, 1);$date = Calendar_Engine_UnixTS::stampCollection($stamp);return $date[8];}/*** Returns the number of days in a week** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)** @return int (7)* @access protected*/function getDaysInWeek($y=null, $m=null, $d=null){return 7;}/*** Returns the number of the week in the year (ISO-8601), given a date** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)** @return int week number* @access protected*/function getWeekNInYear($y, $m, $d){$stamp = Calendar_Engine_UnixTS::dateToStamp($y, $m, $d);$date = Calendar_Engine_UnixTS::stampCollection($stamp);return $date[7];}/*** Returns the number of the week in the month, given a date** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)* @param int $firstDay first day of the week (default: monday)** @return int week number* @access protected*/function getWeekNInMonth($y, $m, $d, $firstDay=1){$weekEnd = (0 == $firstDay) ? $this->getDaysInWeek()-1 : $firstDay-1;$end_of_week = 1;while (@date('w', @mktime(0, 0, 0, $m, $end_of_week, $y)) != $weekEnd) {++$end_of_week; //find first weekend of the month}$w = 1;while ($d > $end_of_week) {++$w;$end_of_week += $this->getDaysInWeek();}return $w;}/*** Returns the number of weeks in the month** @param int $y year (2003)* @param int $m month (9)* @param int $firstDay first day of the week (default: monday)** @return int weeks number* @access protected*/function getWeeksInMonth($y, $m, $firstDay = 1){$FDOM = $this->getFirstDayInMonth($y, $m);if ($FDOM == 0) {$FDOM = $this->getDaysInWeek();}if ($FDOM > $firstDay) {$daysInTheFirstWeek = $this->getDaysInWeek() - $FDOM + $firstDay;$weeks = 1;} else {$daysInTheFirstWeek = $firstDay - $FDOM;$weeks = 0;}$daysInTheFirstWeek %= $this->getDaysInWeek();return (int)(ceil(($this->getDaysInMonth($y, $m) - $daysInTheFirstWeek) /$this->getDaysInWeek()) + $weeks);}/*** Returns the number of the day of the week (0=sunday, 1=monday...)** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)** @return int weekday number* @access protected*/function getDayOfWeek($y, $m, $d){$stamp = Calendar_Engine_UnixTS::dateToStamp($y, $m, $d);$date = Calendar_Engine_UnixTS::stampCollection($stamp);return $date[8];}/*** Returns a list of integer days of the week beginning 0** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)** @return array (0,1,2,3,4,5,6) 1 = Monday* @access protected*/function getWeekDays($y=null, $m=null, $d=null){return array(0, 1, 2, 3, 4, 5, 6);}/*** Returns the default first day of the week** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)** @return int (default 1 = Monday)* @access protected*/function getFirstDayOfWeek($y=null, $m=null, $d=null){return 1;}/*** Returns the number of hours in a day** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)** @return int (24)* @access protected*/function getHoursInDay($y=null, $m=null, $d=null){return 24;}/*** Returns the number of minutes in an hour** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)* @param int $h hour** @return int (60)* @access protected*/function getMinutesInHour($y=null, $m=null, $d=null, $h=null){return 60;}/*** Returns the number of seconds in a minutes** @param int $y year (2003)* @param int $m month (9)* @param int $d day (4)* @param int $h hour* @param int $i minute** @return int (60)* @access protected*/function getSecondsInMinute($y=null, $m=null, $d=null, $h=null, $i=null){return 60;}/*** Checks if the given day is the current day** @param mixed $stamp Any timestamp format recognized by Pear::Date** @return boolean* @access protected*/function isToday($stamp){static $today = null;if (is_null($today)) {$today_date = @date('Y n j');$today = sscanf($today_date, '%d %d %d');}$date = Calendar_Engine_UnixTS::stampCollection($stamp);return ( $date[2] == $today[2]&& $date[1] == $today[1]&& $date[0] == $today[0]);}}?>