<?php
/**
* contains class Timespan
*
* @copyright Copyright (C) 2003-2005 Sebastian Mendel <info at sebastianmendel dot de>
*
* @license http://www.opensource.org/licenses/lgpl-license.php
* GNU Lesser General Public License - LGPL
*
* @package phpDateTime
* @author Sebastian Mendel <info at sebastianmendel dot de>
* @version $Id: Timespan.class.php,v 1.14 2005/03/08 16:20:01 cybot_tm Exp $
* @source $Source: /cvsroot/phpdatetime/phpDateTime/Timespan.class.php,v $
*
* @uses DateTime.class.php
*/
/**
* required class-files
*/
require_once 'DateTime.class.php';
/**
* Class Timespan
*
* @copyright Copyright (C) 2003, 2004 Sebastian Mendel <info at sebastianmendel dot de>
*
* @license http://www.opensource.org/licenses/lgpl-license.php
* GNU Lesser General Public License - LGPL
*
* @package phpDateTime
* @author Sebastian Mendel <info@sebastianmendel.de>
* @uses DateTime
* @todo finish class
*/
class Timespan
{
/**
* start time
* @access protected
* @var object DateTime
*/
var $start;
/**
* end time
* @access protected
* @var object DateTime
*/
var $end;
/**
* @var integer fullyears */
var $fullremyears = 0;
/**
* @var integer full months */
var $fullremmonths = 0;
/**
* @var integer fulldays */
var $fullremdays = 0;
/**
* @var integer years */
var $years = 0;
/**
* @var integer months */
var $months = 0;
/**
* @var integer days */
var $days = 0;
/**
* @var integer fullyears */
var $fullremhours = 0;
/**
* @var integer full months */
var $fullremminutes = 0;
/**
* @var integer fulldays */
var $fullremseconds = 0;
/**
* @var integer years */
var $hours = 0;
/**
* @var integer months */
var $minutes = 0;
/**
* @var integer days */
var $seconds = 0;
/**
* @uses Timespan::set()
* @access protected
* @param string|integer|object_DateTime $start
* @param string|integer|object_DateTime $end
*/
function Timespan( $start = 0, $end = NULL )
{
$this->set( $start, $end );
}
/**
* sets start and end-time
*
* @uses Timespan::setStart()
* @uses Timespan::setEnd()
* @uses Date::setToStartOfWeek()
* @uses Date::setToEndOfWeek()
* @param string|integer|object_DateTime $start
* @param string|integer|object_DateTime $end
* @todo finish
*/
function set( $start = 0, $end = NULL )
{
$this->setStart( $start );
if ( NULL === $end )
{
$this->setEnd( $start );
}
else
{
switch ( $end )
{
case 'year':
// add one year to end
break;
case 'month':
// add one month
break;
case 'week':
// add one year to end
break;
case 'day':
// add one year to end
break;
case 'calendarweek':
// set start and end date to start and end of week for current date
$this->start->date->setToStartOfWeek();
$this->setEnd( $start );
$this->end->date->setToEndOfWeek();
break;
default:
$this->setEnd( $end );
} // switch
}
//$this->updatePorperties();
}
/**
* sets start-date
*
* @uses Timespan::start to set it
* @uses DateTime
* @uses DateTime::get()
* @param string|integer|object_DateTime $datetime
* @return string datetime
*/
function setStart( $datetime )
{
$this->start = new DateTime( $datetime );
$this->updatePorperties();
return $this->start->get();
}
/**
* stes end-date
*
* @uses Timespan::end to set it
* @uses DateTime
* @uses DateTime::get()
* @param string|integer|object_DateTime $datetime
* @return string datetime
*/
function setEnd( $datetime )
{
$this->end = new DateTime( $datetime );
$this->updatePorperties();
return $this->end->get();
}
/**
*
* @uses Timespan::getDifference()
* @return integer
*/
function getYearsRemainder()
{
return $this->fullremyears;
}
/**
*
* @uses Timespan::getDifference()
* @return integer
*/
function getMonthsRemainder()
{
return $this->fullremmonths;
}
/**
*
* @uses Timespan::getDifference()
* @return integer
*/
function getDaysRemainder()
{
return $this->fullremdays;
}
/**
* returns array with difference between the two dates
*
* differenz = array(
* fullremyears,
* fullremmonths,
* fullremdays,
* years,
* months,
* days, )
*
* @access public
* @return array differences
*
*/
function getDifference()
{
return array(
'fullremyears' => $this->fullremyears,
'fullremmonths' => $this->fullremmonths,
'fullremdays' => $this->fullremdays,
'fullremhours' => $this->fullremhours,
'fullremminutes' => $this->fullremminutes,
'fullremseconds' => $this->fullremseconds,
'years' => $this->years,
'months' => $this->months,
'days' => $this->days,
'hours' => $this->hours,
'minutes' => $this->minutes,
'seconds' => $this->seconds,
);
}
/**
* sets all properties back to 0
*/
function resetProperties()
{
$this->fullremyears = 0;
$this->fullremmonths = 0;
$this->fullremdays = 0;
$this->fullremhours = 0;
$this->fullremminutes = 0;
$this->fullremseconds = 0;
$this->years = 0;
$this->months = 0;
$this->days = 0;
$this->hours = 0;
$this->minutes = 0;
$this->seconds = 0;
}
/**
* updates calculated values like days, months, years, ...
*/
function updatePorperties()
{
$this->resetProperties();
if ( ! is_a( $this->end, 'DateTime' ) || ! is_a( $this->start, 'DateTime' ) )
{
return;
}
if ( $this->end->getAsTs() === $this->start->getAsTs() )
{
return;
}
elseif ( $this->end->getAsTs() < $this->start->getAsTs() )
{
$positive = false;
}
else
{
$positive = true;
}
// Time
$this->fullremseconds = $this->end->time->getSeconds() - $this->start->time->getSeconds();
if ( $this->fullremseconds < 0 )
{
if ( $positive )
{
$this->fullremminutes--;
$this->fullremseconds += 60;
}
else
{
$this->fullremminutes++;
$this->fullremseconds -= 60;
}
}
$this->fullremminutes += $this->end->time->getMinutes() - $this->start->time->getMinutes();
if ( $this->fullremminutes < 0 )
{
if ( $positive )
{
$this->fullremhours--;
$this->fullremminutes += 60;
}
else
{
$this->fullremhours++;
$this->fullremminutes -= 60;
}
}
$this->fullremhours += $this->end->time->getHours() - $this->start->time->getHours();
if ( $this->fullremhours < 0 )
{
if ( $positive )
{
$this->fullremdays--;
$this->fullremhours += 24;
}
else
{
$this->fullremdays++;
$this->fullremhours -= 24;
}
}
// Date
$this->fullremdays += $this->end->date->getDay() - $this->start->date->getDay();
if ( $this->fullremdays < 0 )
{
if ( $positive )
{
$this->fullremmonths--;
$this->fullremdays = $this->start->date->getDaysInMonth() - $this->start->date->getDay();
$this->fullremdays += $this->end->date->getDay();
}
else
{
$this->fullremmonths++;
$this->fullremdays = $this->start->date->getDaysInMonth() - $this->start->date->getDay();
$this->fullremdays -= $this->end->date->getDay();
}
}
$this->fullremmonths += $this->end->date->getMonth() - $this->start->date->getMonth();
if ( $this->fullremmonths < 0 )
{
if ( $positive )
{
$this->fullremyears--;
$this->fullremmonths += 12;
}
else
{
$this->fullremyears++;
$this->fullremmonths -= 12;
}
}
$this->fullremyears += $this->end->date->getYear() - $this->start->date->getYear();
$this->years = $this->fullremyears;
$this->months = $this->fullremyears * 12 + $this->fullremmonths;
$this->days = floor( ( $this->end->date->getAsTs() - $this->start->date->getAsTs() ) / 60 / 60 / 24 );
$this->hours = $this->days * 24 + $this->fullremhours;
$this->minutes = $this->hours * 60 + $this->fullremminutes;
$this->seconds = $this->minutes * 60 + $this->fullremseconds;
}
/**
* returns difference in seconds
*
* @return integer seconds
*/
function getAsSeconds()
{
return $this->seconds;
}
/**
* returns string with a textual representation of the time-difference
*
* @param string $lang
* @return string
*/
function getAsString( $lang = 'en' )
{
$locale_names['en']['second'] = ' second';
$locale_names['en']['seconds'] = ' seconds';
$locale_names['en']['minute'] = ' minute';
$locale_names['en']['minutes'] = ' minutes';
$locale_names['en']['hour'] = ' hour';
$locale_names['en']['hours'] = ' hours';
$locale_names['en']['day'] = ' day';
$locale_names['en']['days'] = ' days';
$locale_names['en']['week'] = ' week';
$locale_names['en']['weeks'] = ' weeks';
$locale_names['en']['month'] = ' month';
$locale_names['en']['months'] = ' months';
$locale_names['en']['year'] = ' year';
$locale_names['en']['years'] = ' years';
$locale_names['en']['and'] = ' and';
$locale_names['de']['second'] = ' Sekunde';
$locale_names['de']['seconds'] = ' Sekunden';
$locale_names['de']['minute'] = ' Minute';
$locale_names['de']['minutes'] = ' Minuten';
$locale_names['de']['hour'] = ' Stunde';
$locale_names['de']['hours'] = ' Stunden';
$locale_names['de']['day'] = ' Tag';
$locale_names['de']['days'] = ' Tage';
$locale_names['de']['week'] = ' Woche';
$locale_names['de']['weeks'] = ' Wochen';
$locale_names['de']['month'] = ' Monat';
$locale_names['de']['months'] = ' Monate';
$locale_names['de']['year'] = ' Jahr';
$locale_names['de']['years'] = ' Jahre';
$locale_names['de']['and'] = ' und';
$_ =& $locale_names[$lang];
$this->updatePorperties();
$time = array();
if ( $difference['fullremdays'] > 1 )
{
$time[] = $difference['fullremdays'] . $_['days'];
}
elseif ( $difference['fullremdays'] == 1 )
{
$time[] = $difference['fullremdays'] . $_['day'];
}
if ( $difference['fullremhours'] > 1 )
{
$time[] = $difference['fullremhours'] . $_['hours'];
}
elseif ( $difference['fullremhours'] == 1 )
{
$time[] = $difference['fullremhours'] . $_['hour'];
}
if ( $difference['fullremminutes'] > 1 )
{
$time[] = $difference['fullremminutes'] . $_['minutes'];
}
elseif ( $difference['fullremminutes'] == 1 )
{
$time[] = $difference['fullremminutes'] . $_['minute'];
}
if ( $difference['fullremseconds'] > 1 )
{
$time[] = $difference['fullremseconds'] . $_['seconds'];
}
elseif ( $difference['fullremseconds'] == 1 )
{
$time[] = $difference['fullremseconds'] . $_['second'];
}
$time = implode( ', ', $time );
if ( strstr( $time, ',' ) )
{
$time = substr_replace( $time, $_['and'], strrpos( $time, ',' ), 1 );
}
return $time;
}
}
?>
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