Blame | Letzte Änderung | Log anzeigen | RSS feed
<?php/* vim: set expandtab tabstop=4 shiftwidth=4: *//*** Contains the Calendar_Engine_PearDate 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 Lorenzo Alberton <l.alberton@quipo.it>* @copyright 2003-2007 Lorenzo Alberton* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)* @version CVS: $Id: PearDate.php 269076 2008-11-15 21:41:38Z quipo $* @link http://pear.php.net/package/Calendar*//*** Load PEAR::Date class*/require_once 'Date.php';/*** Performs calendar calculations based on the PEAR::Date class* Timestamps are in the ISO-8601 format (YYYY-MM-DD HH:MM:SS)** @category Date and Time* @package Calendar* @author Lorenzo Alberton <l.alberton@quipo.it>* @copyright 2003-2007 Lorenzo Alberton* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)* @link http://pear.php.net/package/Calendar* @access protected*/class Calendar_Engine_PearDate /* implements Calendar_Engine_Interface */{/*** Makes sure a given timestamp is only ever parsed once* Uses a static variable to prevent date() being used twice* for a date which is already known** @param mixed $stamp Any timestamp format recognized by Pear::Date** @return object Pear::Date object* @access protected*/function stampCollection($stamp){static $stamps = array();if (!isset($stamps[$stamp])) {$stamps[$stamp] = new Date($stamp);}return $stamps[$stamp];}/*** Returns a numeric year given a iso-8601 datetime** @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS)** @return int year (e.g. 2003)* @access protected*/function stampToYear($stamp){$date = Calendar_Engine_PearDate::stampCollection($stamp);return (int)$date->year;}/*** Returns a numeric month given a iso-8601 datetime** @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS)** @return int month (e.g. 9)* @access protected*/function stampToMonth($stamp){$date = Calendar_Engine_PearDate::stampCollection($stamp);return (int)$date->month;}/*** Returns a numeric day given a iso-8601 datetime** @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS)** @return int day (e.g. 15)* @access protected*/function stampToDay($stamp){$date = Calendar_Engine_PearDate::stampCollection($stamp);return (int)$date->day;}/*** Returns a numeric hour given a iso-8601 datetime** @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS)** @return int hour (e.g. 13)* @access protected*/function stampToHour($stamp){$date = Calendar_Engine_PearDate::stampCollection($stamp);return (int)$date->hour;}/*** Returns a numeric minute given a iso-8601 datetime** @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS)** @return int minute (e.g. 34)* @access protected*/function stampToMinute($stamp){$date = Calendar_Engine_PearDate::stampCollection($stamp);return (int)$date->minute;}/*** Returns a numeric second given a iso-8601 datetime** @param string $stamp iso-8601 datetime (YYYY-MM-DD HH:MM:SS)** @return int second (e.g. 51)* @access protected*/function stampToSecond($stamp){$date = Calendar_Engine_PearDate::stampCollection($stamp);return (int)$date->second;}/*** Returns a iso-8601 datetime** @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 $s second (53)** @return string iso-8601 datetime* @access protected*/function dateToStamp($y, $m, $d, $h=0, $i=0, $s=0){$r = array();Calendar_Engine_PearDate::adjustDate($y, $m, $d, $h, $i, $s);$key = $y.$m.$d.$h.$i.$s;if (!isset($r[$key])) {$r[$key] = sprintf("%04d-%02d-%02d %02d:%02d:%02d",$y, $m, $d, $h, $i, $s);}return $r[$key];}/*** Set the correct date values (useful for math operations on dates)** @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 void* @access protected*/function adjustDate(&$y, &$m, &$d, &$h, &$i, &$s){if ($s < 0) {$m -= floor($s / 60);$s = -$s % 60;}if ($s > 60) {$m += floor($s / 60);$s %= 60;}if ($i < 0) {$h -= floor($i / 60);$i = -$i % 60;}if ($i > 60) {$h += floor($i / 60);$i %= 60;}if ($h < 0) {$d -= floor($h / 24);$h = -$h % 24;}if ($h > 24) {$d += floor($h / 24);$h %= 24;}for(; $m < 1; $y--, $m+=12);for(; $m > 12; $y++, $m-=12);while ($d < 1) {if ($m > 1) {$m--;} else {$m = 12;$y--;}$d += Date_Calc::daysInMonth($m, $y);}for ($max_days = Date_Calc::daysInMonth($m, $y); $d > $max_days; ) {$d -= $max_days;if ($m < 12) {$m++;} else {$m = 1;$y++;}}}/*** The upper limit on years that the Calendar Engine can work with** @return int 9999* @access protected*/function getMaxYears(){return 9999;}/*** The lower limit on years that the Calendar Engine can work with** @return int 0* @access protected*/function getMinYears(){return 0;}/*** 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, $m){return (int)Date_Calc::daysInMonth($m, $y);}/*** Returns numeric representation of the day of the week in a month,* given year and month** @param int $y year (2003)* @param int $m month (9)** @return int from 0 to 7* @access protected*/function getFirstDayInMonth($y, $m){return (int)Date_Calc::dayOfWeek(1, $m, $y);}/*** 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, $d){//return Date_Calc::weekOfYear($d, $m, $y); //beware, Date_Calc doesn't follow ISO-8601 standard!list($nYear, $nWeek) = Date_Calc::weekOfYear4th($d, $m, $y);return $nWeek;}/*** 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 = ($firstDay == 0) ? $this->getDaysInWeek()-1 : $firstDay-1;$end_of_week = (int)Date_Calc::nextDayOfWeek($weekEnd, 1, $m, $y, '%e', true);$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 = Date_Calc::firstOfMonthWeekday($m, $y);if ($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, $d){return Date_Calc::dayOfWeek($d, $m, $y);}/*** 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)) {$today = new Date();}$date = Calendar_Engine_PearDate::stampCollection($stamp);return ( $date->day == $today->getDay()&& $date->month == $today->getMonth()&& $date->year == $today->getYear());}}?>