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<?php |
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/* vim: set expandtab tabstop=4 shiftwidth=4: */ |
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/** |
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* Contains the Calendar_Engine_UnixTS class |
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* |
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* PHP versions 4 and 5 |
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* |
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* LICENSE: Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY |
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Date and Time |
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* @package Calendar |
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* @author Harry Fuecks <[email protected]> |
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* @copyright 2003-2007 Harry Fuecks |
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause) |
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* @version CVS: $Id$ |
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* @link http://pear.php.net/package/Calendar |
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*/ |
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namespace PEAR\Calendar\Engine; |
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/** |
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* Performs calendar calculations based on the PHP date() function and |
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* Unix timestamps (using PHP's mktime() function). |
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* |
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* @category Date and Time |
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* @package Calendar |
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* @author Harry Fuecks <[email protected]> |
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* @copyright 2003-2007 Harry Fuecks |
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause) |
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* @link http://pear.php.net/package/Calendar |
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* @access protected |
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*/ |
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class UnixTS /* implements Calendar_Engine_Interface */ |
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{ |
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/** |
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* Makes sure a given timestamp is only ever parsed once |
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* <pre> |
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* array ( |
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* [0] => year (e.g 2003), |
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* [1] => month (e.g 9), |
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* [2] => day (e.g 6), |
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* [3] => hour (e.g 14), |
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* [4] => minute (e.g 34), |
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* [5] => second (e.g 45), |
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* [6] => num days in month (e.g. 31), |
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* [7] => week in year (e.g. 50), |
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* [8] => day in week (e.g. 0 for Sunday) |
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* ) |
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* </pre> |
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* Uses a static variable to prevent date() being used twice |
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* for a date which is already known |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return array |
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* @access protected |
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*/ |
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function stampCollection($stamp) |
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{ |
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static $stamps = array(); |
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if ( !isset($stamps[$stamp]) ) { |
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$date = @date('Y n j H i s t W w', $stamp); |
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$stamps[$stamp] = sscanf($date, "%d %d %d %d %d %d %d %d %d"); |
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} |
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return $stamps[$stamp]; |
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} |
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/** |
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* Returns a numeric year given a timestamp |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return int year (e.g. 2003) |
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* @access protected |
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*/ |
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function stampToYear($stamp) |
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{ |
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$date = UnixTS::stampCollection($stamp); |
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return (int)$date[0]; |
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} |
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/** |
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* Returns a numeric month given a timestamp |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return int month (e.g. 9) |
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* @access protected |
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*/ |
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function stampToMonth($stamp) |
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{ |
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$date = UnixTS::stampCollection($stamp); |
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return (int)$date[1]; |
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} |
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/** |
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* Returns a numeric day given a timestamp |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return int day (e.g. 15) |
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* @access protected |
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*/ |
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function stampToDay($stamp) |
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{ |
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$date = UnixTS::stampCollection($stamp); |
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return (int)$date[2]; |
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} |
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/** |
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* Returns a numeric hour given a timestamp |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return int hour (e.g. 13) |
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* @access protected |
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*/ |
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function stampToHour($stamp) |
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{ |
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$date = UnixTS::stampCollection($stamp); |
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return (int)$date[3]; |
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} |
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/** |
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* Returns a numeric minute given a timestamp |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return int minute (e.g. 34) |
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* @access protected |
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*/ |
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function stampToMinute($stamp) |
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{ |
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$date = UnixTS::stampCollection($stamp); |
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return (int)$date[4]; |
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} |
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/** |
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* Returns a numeric second given a timestamp |
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* |
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* @param int $stamp Unix timestamp |
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* |
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* @return int second (e.g. 51) |
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* @access protected |
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*/ |
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function stampToSecond($stamp) |
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{ |
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$date = UnixTS::stampCollection($stamp); |
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return (int)$date[5]; |
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} |
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/** |
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* Returns a timestamp |
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* |
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* @param int $y year (2003) |
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* @param int $m month (9) |
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* @param int $d day (13) |
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* @param int $h hour (13) |
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* @param int $i minute (34) |
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* @param int $s second (53) |
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* |
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* @return int Unix timestamp |
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* @access protected |
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*/ |
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function dateToStamp($y, $m, $d, $h=0, $i=0, $s=0) |
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{ |
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static $dates = array(); |
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if (!isset($dates[$y][$m][$d][$h][$i][$s])) { |
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$dates[$y][$m][$d][$h][$i][$s] = @mktime($h, $i, $s, $m, $d, $y); |
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} |
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return $dates[$y][$m][$d][$h][$i][$s]; |
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} |
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/** |
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* The upper limit on years that the Calendar Engine can work with |
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* |
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* @return int (2037) |
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* @access protected |
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*/ |
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function getMaxYears() |
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{ |
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return 2037; |
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} |
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/** |
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* The lower limit on years that the Calendar Engine can work with |
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* |
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* @return int (1970 if it's Windows and 1902 for all other OSs) |
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* @access protected |
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*/ |
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function getMinYears() |
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{ |
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return $min = strpos(PHP_OS, 'WIN') === false ? 1902 : 1970; |
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} |
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/** |
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* Returns the number of months in a year |
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* |
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* @param int $y year |
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* |
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* @return int (12) |
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* @access protected |
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*/ |
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function getMonthsInYear($y=null) |
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{ |
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return 12; |
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} |
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/** |
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* Returns the number of days in a month, given year and month |
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* |
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* @param int $y year (2003) |
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* @param int $m month (9) |
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* |
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* @return int days in month |
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* @access protected |
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*/ |
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function getDaysInMonth($y, $m) |
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{ |
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$stamp = UnixTS::dateToStamp($y, $m, 1); |
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$date = UnixTS::stampCollection($stamp); |
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return $date[6]; |
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} |
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/** |
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* Returns numeric representation of the day of the week in a month, |
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* given year and month |
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* |
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* @param int $y year (2003) |
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* @param int $m month (9) |
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* |
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* @return int from 0 to 6 |
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* @access protected |
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*/ |
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function getFirstDayInMonth($y, $m) |
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{ |
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$stamp = UnixTS::dateToStamp($y, $m, 1); |
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$date = UnixTS::stampCollection($stamp); |
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return $date[8]; |
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} |
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/** |
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* Returns the number of days in a week |
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* |
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* @param int $y year (2003) |
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* @param int $m month (9) |
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* @param int $d day (4) |
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* |
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* @return int (7) |
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* @access protected |
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*/ |
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function getDaysInWeek($y=null, $m=null, $d=null) |
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{ |
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return 7; |
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} |
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/** |
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* Returns the number of the week in the year (ISO-8601), given a date |
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* |
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* @param int $y year (2003) |
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* @param int $m month (9) |
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* @param int $d day (4) |
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* |
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* @return int week number |
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* @access protected |
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*/ |
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function getWeekNInYear($y, $m, $d) |
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{ |
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$stamp = UnixTS::dateToStamp($y, $m, $d); |
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$date = UnixTS::stampCollection($stamp); |
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return $date[7]; |
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} |
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/** |
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* Returns the number of the week in the month, given a date |
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* |
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* @param int $y year (2003) |
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* @param int $m month (9) |
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* @param int $d day (4) |
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* @param int $firstDay first day of the week (default: monday) |
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* |
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* @return int week number |
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* @access protected |
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*/ |
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function getWeekNInMonth($y, $m, $d, $firstDay=1) |
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{ |
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$weekEnd = (0 == $firstDay) ? $this->getDaysInWeek()-1 : $firstDay-1; |
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$end_of_week = 1; |
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while (@date('w', @mktime(0, 0, 0, $m, $end_of_week, $y)) != $weekEnd) { |
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++$end_of_week; //find first weekend of the month |
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} |
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$w = 1; |
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312
|
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while ($d > $end_of_week) { |
|
313
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++$w; |
|
314
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$end_of_week += $this->getDaysInWeek(); |
|
315
|
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} |
|
316
|
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return $w; |
|
317
|
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} |
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318
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|
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|
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319
|
|
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/** |
|
320
|
|
|
* Returns the number of weeks in the month |
|
321
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* |
|
322
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|
* @param int $y year (2003) |
|
323
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|
|
* @param int $m month (9) |
|
324
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|
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* @param int $firstDay first day of the week (default: monday) |
|
325
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|
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* |
|
326
|
|
|
* @return int weeks number |
|
327
|
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|
* @access protected |
|
328
|
|
|
*/ |
|
329
|
|
|
function getWeeksInMonth($y, $m, $firstDay = 1) |
|
|
|
|
|
|
330
|
|
|
{ |
|
331
|
|
|
$FDOM = $this->getFirstDayInMonth($y, $m); |
|
332
|
|
|
if ($FDOM == 0) { |
|
333
|
|
|
$FDOM = $this->getDaysInWeek(); |
|
334
|
|
|
} |
|
335
|
|
|
if ($FDOM > $firstDay) { |
|
336
|
|
|
$daysInTheFirstWeek = $this->getDaysInWeek() - $FDOM + $firstDay; |
|
337
|
|
|
$weeks = 1; |
|
338
|
|
|
} else { |
|
339
|
|
|
$daysInTheFirstWeek = $firstDay - $FDOM; |
|
340
|
|
|
$weeks = 0; |
|
341
|
|
|
} |
|
342
|
|
|
$daysInTheFirstWeek %= $this->getDaysInWeek(); |
|
343
|
|
|
return (int)(ceil(($this->getDaysInMonth($y, $m) - $daysInTheFirstWeek) / |
|
344
|
|
|
$this->getDaysInWeek()) + $weeks); |
|
345
|
|
|
} |
|
346
|
|
|
|
|
347
|
|
|
/** |
|
348
|
|
|
* Returns the number of the day of the week (0=sunday, 1=monday...) |
|
349
|
|
|
* |
|
350
|
|
|
* @param int $y year (2003) |
|
351
|
|
|
* @param int $m month (9) |
|
352
|
|
|
* @param int $d day (4) |
|
353
|
|
|
* |
|
354
|
|
|
* @return int weekday number |
|
355
|
|
|
* @access protected |
|
356
|
|
|
*/ |
|
357
|
|
|
function getDayOfWeek($y, $m, $d) |
|
|
|
|
|
|
358
|
|
|
{ |
|
359
|
|
|
$stamp = UnixTS::dateToStamp($y, $m, $d); |
|
|
|
|
|
|
360
|
|
|
$date = UnixTS::stampCollection($stamp); |
|
|
|
|
|
|
361
|
|
|
return $date[8]; |
|
362
|
|
|
} |
|
363
|
|
|
|
|
364
|
|
|
/** |
|
365
|
|
|
* Returns a list of integer days of the week beginning 0 |
|
366
|
|
|
* |
|
367
|
|
|
* @param int $y year (2003) |
|
368
|
|
|
* @param int $m month (9) |
|
369
|
|
|
* @param int $d day (4) |
|
370
|
|
|
* |
|
371
|
|
|
* @return array (0,1,2,3,4,5,6) 1 = Monday |
|
372
|
|
|
* @access protected |
|
373
|
|
|
*/ |
|
374
|
|
|
function getWeekDays($y=null, $m=null, $d=null) |
|
|
|
|
|
|
375
|
|
|
{ |
|
376
|
|
|
return array(0, 1, 2, 3, 4, 5, 6); |
|
377
|
|
|
} |
|
378
|
|
|
|
|
379
|
|
|
/** |
|
380
|
|
|
* Returns the default first day of the week |
|
381
|
|
|
* |
|
382
|
|
|
* @param int $y year (2003) |
|
383
|
|
|
* @param int $m month (9) |
|
384
|
|
|
* @param int $d day (4) |
|
385
|
|
|
* |
|
386
|
|
|
* @return int (default 1 = Monday) |
|
387
|
|
|
* @access protected |
|
388
|
|
|
*/ |
|
389
|
|
|
function getFirstDayOfWeek($y=null, $m=null, $d=null) |
|
|
|
|
|
|
390
|
|
|
{ |
|
391
|
|
|
return 1; |
|
392
|
|
|
} |
|
393
|
|
|
|
|
394
|
|
|
/** |
|
395
|
|
|
* Returns the number of hours in a day |
|
396
|
|
|
* |
|
397
|
|
|
* @param int $y year (2003) |
|
398
|
|
|
* @param int $m month (9) |
|
399
|
|
|
* @param int $d day (4) |
|
400
|
|
|
* |
|
401
|
|
|
* @return int (24) |
|
402
|
|
|
* @access protected |
|
403
|
|
|
*/ |
|
404
|
|
|
function getHoursInDay($y=null, $m=null, $d=null) |
|
|
|
|
|
|
405
|
|
|
{ |
|
406
|
|
|
return 24; |
|
407
|
|
|
} |
|
408
|
|
|
|
|
409
|
|
|
/** |
|
410
|
|
|
* Returns the number of minutes in an hour |
|
411
|
|
|
* |
|
412
|
|
|
* @param int $y year (2003) |
|
413
|
|
|
* @param int $m month (9) |
|
414
|
|
|
* @param int $d day (4) |
|
415
|
|
|
* @param int $h hour |
|
416
|
|
|
* |
|
417
|
|
|
* @return int (60) |
|
418
|
|
|
* @access protected |
|
419
|
|
|
*/ |
|
420
|
|
|
function getMinutesInHour($y=null, $m=null, $d=null, $h=null) |
|
|
|
|
|
|
421
|
|
|
{ |
|
422
|
|
|
return 60; |
|
423
|
|
|
} |
|
424
|
|
|
|
|
425
|
|
|
/** |
|
426
|
|
|
* Returns the number of seconds in a minutes |
|
427
|
|
|
* |
|
428
|
|
|
* @param int $y year (2003) |
|
429
|
|
|
* @param int $m month (9) |
|
430
|
|
|
* @param int $d day (4) |
|
431
|
|
|
* @param int $h hour |
|
432
|
|
|
* @param int $i minute |
|
433
|
|
|
* |
|
434
|
|
|
* @return int (60) |
|
435
|
|
|
* @access protected |
|
436
|
|
|
*/ |
|
437
|
|
|
function getSecondsInMinute($y=null, $m=null, $d=null, $h=null, $i=null) |
|
|
|
|
|
|
438
|
|
|
{ |
|
439
|
|
|
return 60; |
|
440
|
|
|
} |
|
441
|
|
|
|
|
442
|
|
|
/** |
|
443
|
|
|
* Checks if the given day is the current day |
|
444
|
|
|
* |
|
445
|
|
|
* @param mixed $stamp Any timestamp format recognized by Pear::Date |
|
446
|
|
|
* |
|
447
|
|
|
* @return boolean |
|
448
|
|
|
* @access protected |
|
449
|
|
|
*/ |
|
450
|
|
|
function isToday($stamp) |
|
|
|
|
|
|
451
|
|
|
{ |
|
452
|
|
|
static $today = null; |
|
453
|
|
|
if (is_null($today)) { |
|
454
|
|
|
$today_date = @date('Y n j'); |
|
455
|
|
|
$today = sscanf($today_date, '%d %d %d'); |
|
456
|
|
|
} |
|
457
|
|
|
$date = UnixTS::stampCollection($stamp); |
|
|
|
|
|
|
458
|
|
|
return ( $date[2] == $today[2] |
|
459
|
|
|
&& $date[1] == $today[1] |
|
460
|
|
|
&& $date[0] == $today[0] |
|
461
|
|
|
); |
|
462
|
|
|
} |
|
463
|
|
|
} |
|
464
|
|
|
|
FriendsOfPear /
Calendar
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.