780 lines
23 KiB
PHP
780 lines
23 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Contains the Calendar and Calendar_Engine_Factory classes
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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 <hfuecks@phppatterns.com>
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* @author Lorenzo Alberton <l.alberton@quipo.it>
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* @copyright 2003-2007 Harry Fuecks, Lorenzo Alberton
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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* @version CVS: $Id: Calendar.php 300729 2010-06-24 12:05:53Z quipo $
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* @link http://pear.php.net/package/Calendar
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*/
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/**
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* Allows Calendar include path to be redefined
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*/
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if (!defined('CALENDAR_ROOT')) {
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define('CALENDAR_ROOT', 'Calendar'.DIRECTORY_SEPARATOR);
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}
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/**
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* Constant which defines the calculation engine to use
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*/
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if (!defined('CALENDAR_ENGINE')) {
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define('CALENDAR_ENGINE', 'UnixTS');
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}
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/**
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* Define Calendar Month states
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*/
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define('CALENDAR_USE_MONTH', 1);
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define('CALENDAR_USE_MONTH_WEEKDAYS', 2);
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define('CALENDAR_USE_MONTH_WEEKS', 3);
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/**
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* Contains a factory method to return a Singleton instance of a class
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* implementing the Calendar_Engine_Interface.<br>
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* <b>Note:</b> this class must be modified to "register" alternative
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* Calendar_Engines. The engine used can be controlled with the constant
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* CALENDAR_ENGINE
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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 <hfuecks@phppatterns.com>
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* @author Lorenzo Alberton <l.alberton@quipo.it>
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* @copyright 2003-2007 Harry Fuecks, Lorenzo Alberton
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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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* @see Calendar_Engine_Interface
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* @access protected
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*/
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class Calendar_Engine_Factory
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{
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/**
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* Returns an instance of the engine
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*
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* @return object instance of a calendar calculation engine
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* @access protected
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*/
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function & getEngine()
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{
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static $engine = false;
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switch (CALENDAR_ENGINE) {
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case 'PearDate':
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$class = 'Calendar_Engine_PearDate';
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break;
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case 'UnixTS':
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default:
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$class = 'Calendar_Engine_UnixTS';
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break;
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}
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if (!$engine) {
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if (!class_exists($class)) {
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include_once CALENDAR_ROOT.'Engine'.DIRECTORY_SEPARATOR.CALENDAR_ENGINE.'.php';
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}
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$engine = new $class;
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}
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return $engine;
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}
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}
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/**
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* Base class for Calendar API. This class should not be instantiated directly.
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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 <hfuecks@phppatterns.com>
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* @author Lorenzo Alberton <l.alberton@quipo.it>
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* @copyright 2003-2007 Harry Fuecks, Lorenzo Alberton
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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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* @abstract
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*/
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class Calendar
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{
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/**
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* Instance of class implementing calendar engine interface
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* @var object
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* @access private
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*/
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var $cE;
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/**
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* Instance of Calendar_Validator (lazy initialized when isValid() or
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* getValidor() is called
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* @var Calendar_Validator
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* @access private
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*/
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var $validator;
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/**
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* Year for this calendar object e.g. 2003
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* @access private
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* @var int
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*/
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var $year;
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/**
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* Month for this calendar object e.g. 9
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* @access private
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* @var int
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*/
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var $month;
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/**
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* Day of month for this calendar object e.g. 23
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* @access private
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* @var int
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*/
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var $day;
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/**
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* Hour of day for this calendar object e.g. 13
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* @access private
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* @var int
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*/
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var $hour;
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/**
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* Minute of hour this calendar object e.g. 46
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* @access private
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* @var int
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*/
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var $minute;
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/**
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* Second of minute this calendar object e.g. 34
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* @access private
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* @var int
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*/
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var $second;
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/**
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* Marks this calendar object as selected (e.g. 'today')
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* @access private
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* @var boolean
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*/
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var $selected = false;
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/**
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* Collection of child calendar objects created from subclasses
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* of Calendar. Type depends on the object which created them.
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* @access private
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* @var array
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*/
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var $children = array();
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/**
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* Constructs the Calendar
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*
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* @param int $y year
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* @param int $m month
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* @param int $d day
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* @param int $h hour
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* @param int $i minute
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* @param int $s second
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*
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* @access protected
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*/
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function Calendar($y = 2000, $m = 1, $d = 1, $h = 0, $i = 0, $s = 0)
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{
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static $cE = null;
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if (!isset($cE)) {
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$cE = & Calendar_Engine_Factory::getEngine();
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}
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$this->cE = & $cE;
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$this->year = (int)$y;
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$this->month = (int)$m;
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$this->day = (int)$d;
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$this->hour = (int)$h;
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$this->minute = (int)$i;
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$this->second = (int)$s;
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}
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/**
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* Defines the calendar by a timestamp (Unix or ISO-8601), replacing values
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* passed to the constructor
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*
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* @param int|string $ts Unix or ISO-8601 timestamp
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*
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* @return void
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* @access public
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*/
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function setTimestamp($ts)
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{
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$this->year = $this->cE->stampToYear($ts);
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$this->month = $this->cE->stampToMonth($ts);
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$this->day = $this->cE->stampToDay($ts);
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$this->hour = $this->cE->stampToHour($ts);
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$this->minute = $this->cE->stampToMinute($ts);
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$this->second = $this->cE->stampToSecond($ts);
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}
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/**
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* Returns a timestamp from the current date / time values. Format of
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* timestamp depends on Calendar_Engine implementation being used
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*
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* @return int|string timestamp
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* @access public
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*/
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function getTimestamp()
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{
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return $this->cE->dateToStamp(
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$this->year, $this->month, $this->day,
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$this->hour, $this->minute, $this->second);
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}
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/**
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* Defines calendar object as selected (e.g. for today)
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*
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* @param boolean $state whether Calendar subclass
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*
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* @return void
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* @access public
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*/
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function setSelected($state = true)
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{
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$this->selected = $state;
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}
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/**
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* True if the calendar subclass object is selected (e.g. today)
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*
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* @return boolean
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* @access public
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*/
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function isSelected()
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{
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return $this->selected;
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}
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/**
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* Checks if the current Calendar object is today's date
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*
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* @return boolean
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* @access public
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*/
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function isToday()
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{
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return $this->cE->isToday($this->getTimeStamp());
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}
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/**
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* Adjusts the date (helper method)
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*
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* @return void
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* @access public
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*/
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function adjust()
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{
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$stamp = $this->getTimeStamp();
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$this->year = $this->cE->stampToYear($stamp);
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$this->month = $this->cE->stampToMonth($stamp);
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$this->day = $this->cE->stampToDay($stamp);
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$this->hour = $this->cE->stampToHour($stamp);
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$this->minute = $this->cE->stampToMinute($stamp);
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$this->second = $this->cE->stampToSecond($stamp);
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}
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/**
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* Returns the date as an associative array (helper method)
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*
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* @param mixed $stamp timestamp (leave empty for current timestamp)
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*
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* @return array
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* @access public
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*/
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function toArray($stamp=null)
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{
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if (is_null($stamp)) {
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$stamp = $this->getTimeStamp();
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}
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return array(
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'year' => $this->cE->stampToYear($stamp),
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'month' => $this->cE->stampToMonth($stamp),
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'day' => $this->cE->stampToDay($stamp),
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'hour' => $this->cE->stampToHour($stamp),
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'minute' => $this->cE->stampToMinute($stamp),
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'second' => $this->cE->stampToSecond($stamp)
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);
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}
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/**
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* Returns the value as an associative array (helper method)
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*
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* @param string $returnType type of date object that return value represents
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* @param string $format ['int' | 'array' | 'timestamp' | 'object']
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* @param mixed $stamp timestamp (depending on Calendar engine being used)
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* @param int $default default value (i.e. give me the answer quick)
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*
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* @return mixed
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* @access private
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*/
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function returnValue($returnType, $format, $stamp, $default)
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{
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switch (strtolower($format)) {
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case 'int':
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return $default;
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case 'array':
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return $this->toArray($stamp);
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break;
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case 'object':
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include_once CALENDAR_ROOT.'Factory.php';
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return Calendar_Factory::createByTimestamp($returnType, $stamp);
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break;
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case 'timestamp':
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default:
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return $stamp;
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break;
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}
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}
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/**
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* Abstract method for building the children of a calendar object.
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* Implemented by Calendar subclasses
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*
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* @param array $sDates array containing Calendar objects to select (optional)
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*
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* @return boolean
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* @access public
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* @abstract
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*/
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function build($sDates = array())
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{
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include_once 'PEAR.php';
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PEAR::raiseError('Calendar::build is abstract', null, PEAR_ERROR_TRIGGER,
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E_USER_NOTICE, 'Calendar::build()');
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return false;
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}
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/**
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* Abstract method for selected data objects called from build
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*
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* @param array $sDates array of Calendar objects to select
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*
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* @return boolean
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* @access public
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* @abstract
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*/
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function setSelection($sDates)
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{
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include_once 'PEAR.php';
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PEAR::raiseError(
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'Calendar::setSelection is abstract', null, PEAR_ERROR_TRIGGER,
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E_USER_NOTICE, 'Calendar::setSelection()');
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return false;
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}
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/**
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* Iterator method for fetching child Calendar subclass objects
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* (e.g. a minute from an hour object). On reaching the end of
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* the collection, returns false and resets the collection for
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* further iteratations.
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*
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* @return mixed either an object subclass of Calendar or false
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* @access public
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*/
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function fetch()
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{
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$child = each($this->children);
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if ($child) {
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return $child['value'];
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} else {
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reset($this->children);
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return false;
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}
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}
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/**
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* Fetches all child from the current collection of children
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*
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* @return array
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* @access public
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*/
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function fetchAll()
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{
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return $this->children;
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}
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/**
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* Get the number Calendar subclass objects stored in the internal collection
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*
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* @return int
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* @access public
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*/
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function size()
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{
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return count($this->children);
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}
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/**
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* Determine whether this date is valid, with the bounds determined by
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* the Calendar_Engine. The call is passed on to Calendar_Validator::isValid
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*
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* @return boolean
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* @access public
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*/
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function isValid()
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{
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$validator = & $this->getValidator();
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return $validator->isValid();
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}
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/**
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* Returns an instance of Calendar_Validator
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*
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* @return Calendar_Validator
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* @access public
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*/
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function & getValidator()
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{
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if (!isset($this->validator)) {
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include_once CALENDAR_ROOT.'Validator.php';
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$this->validator = new Calendar_Validator($this);
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}
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return $this->validator;
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}
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/**
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* Returns a reference to the current Calendar_Engine being used. Useful
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* for Calendar_Table_Helper and Calendar_Validator
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*
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* @return object implementing Calendar_Engine_Inteface
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* @access protected
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*/
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function & getEngine()
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{
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return $this->cE;
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}
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/**
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* Set the CALENDAR_FIRST_DAY_OF_WEEK constant to the $firstDay value
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* if the constant is not set yet.
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*
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* @param integer $firstDay first day of the week (0=sunday, 1=monday, ...)
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*
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* @return integer
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* @throws E_USER_WARNING this method throws a WARNING if the
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* CALENDAR_FIRST_DAY_OF_WEEK constant is already defined and
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* the $firstDay parameter is set to a different value
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* @access protected
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*/
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function defineFirstDayOfWeek($firstDay = null)
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{
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if (defined('CALENDAR_FIRST_DAY_OF_WEEK')) {
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if (!is_null($firstDay) && ($firstDay != CALENDAR_FIRST_DAY_OF_WEEK)) {
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$msg = 'CALENDAR_FIRST_DAY_OF_WEEK constant already defined.'
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.' The $firstDay parameter will be ignored.';
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trigger_error($msg, E_USER_WARNING);
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}
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return CALENDAR_FIRST_DAY_OF_WEEK;
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}
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if (is_null($firstDay)) {
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$firstDay = $this->cE->getFirstDayOfWeek(
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$this->thisYear(),
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$this->thisMonth(),
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$this->thisDay()
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);
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}
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define ('CALENDAR_FIRST_DAY_OF_WEEK', $firstDay);
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return CALENDAR_FIRST_DAY_OF_WEEK;
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}
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/**
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* Returns the value for the previous year
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*
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* @param string $format return value format ['int'|'timestamp'|'object'|'array']
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*
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* @return int e.g. 2002 or timestamp
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* @access public
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*/
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function prevYear($format = 'int')
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{
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$ts = $this->cE->dateToStamp($this->year-1, 1, 1, 0, 0, 0);
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return $this->returnValue('Year', $format, $ts, $this->year-1);
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}
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/**
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* Returns the value for this year
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*
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* @param string $format return value format ['int'|'timestamp'|'object'|'array']
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*
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* @return int e.g. 2003 or timestamp
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* @access public
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*/
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function thisYear($format = 'int')
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{
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$ts = $this->cE->dateToStamp($this->year, 1, 1, 0, 0, 0);
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return $this->returnValue('Year', $format, $ts, $this->year);
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}
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/**
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* Returns the value for next year
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*
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* @param string $format return value format ['int'|'timestamp'|'object'|'array']
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*
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* @return int e.g. 2004 or timestamp
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* @access public
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*/
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function nextYear($format = 'int')
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{
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$ts = $this->cE->dateToStamp($this->year+1, 1, 1, 0, 0, 0);
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return $this->returnValue('Year', $format, $ts, $this->year+1);
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}
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/**
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* Returns the value for the previous month
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*
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* @param string $format return value format ['int'|'timestamp'|'object'|'array']
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*
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* @return int e.g. 4 or Unix timestamp
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* @access public
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*/
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function prevMonth($format = 'int')
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{
|
|
$ts = $this->cE->dateToStamp($this->year, $this->month-1, 1, 0, 0, 0);
|
|
return $this->returnValue('Month', $format, $ts, $this->cE->stampToMonth($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for this month
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 5 or timestamp
|
|
* @access public
|
|
*/
|
|
function thisMonth($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp($this->year, $this->month, 1, 0, 0, 0);
|
|
return $this->returnValue('Month', $format, $ts, $this->month);
|
|
}
|
|
|
|
/**
|
|
* Returns the value for next month
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 6 or timestamp
|
|
* @access public
|
|
*/
|
|
function nextMonth($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp($this->year, $this->month+1, 1, 0, 0, 0);
|
|
return $this->returnValue('Month', $format, $ts, $this->cE->stampToMonth($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the previous day
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 10 or timestamp
|
|
* @access public
|
|
*/
|
|
function prevDay($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day-1, 0, 0, 0);
|
|
return $this->returnValue('Day', $format, $ts, $this->cE->stampToDay($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for this day
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 11 or timestamp
|
|
* @access public
|
|
*/
|
|
function thisDay($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day, 0, 0, 0);
|
|
return $this->returnValue('Day', $format, $ts, $this->day);
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the next day
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 12 or timestamp
|
|
* @access public
|
|
*/
|
|
function nextDay($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day+1, 0, 0, 0);
|
|
return $this->returnValue('Day', $format, $ts, $this->cE->stampToDay($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the previous hour
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 13 or timestamp
|
|
* @access public
|
|
*/
|
|
function prevHour($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day, $this->hour-1, 0, 0);
|
|
return $this->returnValue('Hour', $format, $ts, $this->cE->stampToHour($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for this hour
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 14 or timestamp
|
|
* @access public
|
|
*/
|
|
function thisHour($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day, $this->hour, 0, 0);
|
|
return $this->returnValue('Hour', $format, $ts, $this->hour);
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the next hour
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 14 or timestamp
|
|
* @access public
|
|
*/
|
|
function nextHour($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day, $this->hour+1, 0, 0);
|
|
return $this->returnValue('Hour', $format, $ts, $this->cE->stampToHour($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the previous minute
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 23 or timestamp
|
|
* @access public
|
|
*/
|
|
function prevMinute($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day,
|
|
$this->hour, $this->minute-1, 0);
|
|
return $this->returnValue('Minute', $format, $ts, $this->cE->stampToMinute($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for this minute
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 24 or timestamp
|
|
* @access public
|
|
*/
|
|
function thisMinute($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day,
|
|
$this->hour, $this->minute, 0);
|
|
return $this->returnValue('Minute', $format, $ts, $this->minute);
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the next minute
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 25 or timestamp
|
|
* @access public
|
|
*/
|
|
function nextMinute($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day,
|
|
$this->hour, $this->minute+1, 0);
|
|
return $this->returnValue('Minute', $format, $ts, $this->cE->stampToMinute($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the previous second
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 43 or timestamp
|
|
* @access public
|
|
*/
|
|
function prevSecond($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day,
|
|
$this->hour, $this->minute, $this->second-1);
|
|
return $this->returnValue('Second', $format, $ts, $this->cE->stampToSecond($ts));
|
|
}
|
|
|
|
/**
|
|
* Returns the value for this second
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 44 or timestamp
|
|
* @access public
|
|
*/
|
|
function thisSecond($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day,
|
|
$this->hour, $this->minute, $this->second);
|
|
return $this->returnValue('Second', $format, $ts, $this->second);
|
|
}
|
|
|
|
/**
|
|
* Returns the value for the next second
|
|
*
|
|
* @param string $format return value format ['int'|'timestamp'|'object'|'array']
|
|
*
|
|
* @return int e.g. 45 or timestamp
|
|
* @access public
|
|
*/
|
|
function nextSecond($format = 'int')
|
|
{
|
|
$ts = $this->cE->dateToStamp(
|
|
$this->year, $this->month, $this->day,
|
|
$this->hour, $this->minute, $this->second+1);
|
|
return $this->returnValue('Second', $format, $ts, $this->cE->stampToSecond($ts));
|
|
}
|
|
}
|
|
?>
|