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Bug #3620 - calculation of time elapsed between dates should be accurate

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e107steved 2006-12-22 20:46:53 +00:00
parent a18a532d30
commit 64c78857b6
1 changed files with 61 additions and 32 deletions
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93
e107_handlers/date_handler.php
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@ -11,9 +11,10 @@
| GNU General Public License (http://gnu.org).
|
| $Source: /cvs_backup/e107_0.8/e107_handlers/date_handler.php,v $
| $Revision: 1.1.1.1 $
| $Date: 2006-12-02 04:33:42 $
| $Author: mcfly_e107 $
| $Revision: 1.2 $
| $Date: 2006-12-22 20:46:53 $
| $Author: e107steved $
|
+----------------------------------------------------------------------------+
*/
if (!defined('e107_INIT')) { exit; }
@ -49,15 +50,11 @@ class convert
}
function computeLapse($older_date, $newer_date = FALSE, $mode = FALSE, $show_secs = TRUE, $format = 'long')
{
/*
{ /*
$mode = TRUE :: return array
$mode = FALSE :: return string
*/
$newer_date = ($newer_date == FALSE ? (time()) : $newer_date);
$since = $newer_date - $older_date;
if($format == 'short')
{
$sec = LANDT_09;
@ -72,34 +69,66 @@ class convert
$min = LANDT_06;
$mins = LANDT_06s;
}
$timings = array(
array(31536000 , LANDT_01,LANDT_01s),
array(2592000 , LANDT_02, LANDT_02s),
array(604800, LANDT_03, LANDT_03s),
array(86400 , LANDT_04, LANDT_04s),
array(3600 , LANDT_05, LANDT_05s),
array(60 , $min, $mins)
);
if($show_secs)
{
$timings[] = array(1 , $sec, $secs);
}
/*
If we want an absolutely accurate result, main problems arise from the varying numbers of days in a month.
If we go over a month boundary, then we need to add days to end of start month, plus days in 'end' month
If start day > end day, we cross a month boundary. Calculate last day of start date. Otherwise we can just do a simple difference.
*/
$newer_date = ($newer_date == FALSE ? (time()) : $newer_date);
$since = $newer_date - $older_date;
$new_date = getdate($newer_date);
$old_date = getdate($older_date);
$result = array();
$outputArray = array();
$total = $since;
$value = FALSE;
foreach($timings as $time)
$params = array(
6 => array('seconds',60, $sec, $secs),
5 => array('minutes',60, $min, $mins),
4 => array('hours',24, LANDT_05, LANDT_05s),
3 => array('mday', -1, LANDT_04, LANDT_04s),
2 => array('',-3, LANDT_03, LANDT_03s),
1 => array('mon',12, LANDT_02, LANDT_02s),
0 => array('year', -2, LANDT_01,LANDT_01s)
);
$cy = 0;
foreach ($params as $parkey => $parval)
{
$seconds = floor($total / $time[0]);
if($seconds || $value)
{
$outputArray[] = $seconds." ".($seconds == 1 ? $time[1] : $time[2]);
$value = TRUE;
if ($parkey == 2)
{
$result['2'] = floor($result['3']/7);
$result['3'] = fmod($result['3'],7);
}
else
{
$tmp = $new_date[$parval[0]] - $old_date[$parval[0]] - $cy;
$scy = $cy;
$cy = 0;
if ($tmp < 0)
{
switch ($parval[1])
{
case -1 : // Wrapround on months - special treatment
$tempdate = getdate(mktime(0,0,0,$old_date['mon']+1,1,$old_date['year']) - 1); // Last day of month
$tmp = $tempdate['mday'] - $old_date['mday'] + $new_date['mday'] - $scy;
$cy = 1;
break;
case -2 : // Year wraparound - shouldn't happen
case -3 : // Week processing - this shouldn't happen either
echo "Code bug!<br />";
break;
default :
$cy = 1;
$tmp += $parval[1];
}
$total = fmod($total, $time[0]);
}
$result[$parkey] = $tmp;
}
}
// Generate output array, add text
for ($i = 0; $i < ($show_secs ? 7 : 6); $i++)
{
$outputArray[] = $result[$i]." ".($result[$i] == 1 ? $params[$i][2] : $params[$i][3]);
}
return ($mode ? $outputArray : implode(", ", $outputArray));
}