note 112932 added to datetime.settimestamp
| From: | Arnb | Date: | Thu, 08 Aug 2013 12:35:11 +0000 |
| Subject: | note 112932 added to datetime.settimestamp | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-195913@lists.php.net to get a copy of this message | ||
When you need to manipulate a unix timestamp like field (seconds since 1970-01-01) that may be
greater than the drop dead date of 2038-01-19.
<?php
function secs2date($secs,$date)
{
if ($secs>2147472000) //2038-01-19 expire dt
{
$date->setTimestamp(2147472000);
$s=$secs-2147472000;
$date->add(new DateInterval('PT'.$s.'S'));
}
else
$date->setTimestamp($secs);
}
function date2secs($date,$datebeg)
{
$diff = $datebeg->diff($date);
$secs=$diff->format('%a') * (60*60*24); //total days
$secs+=$diff->format('%h') * (60*60); //hours
$secs+=$diff->format('%i') * 60; //minutes
$secs+=$diff->format('%s'); //seconds
return $secs;
}
$datebeg = new DateTime('1970-01-01');
$date=new dateTime();
$secs=2017472000; //2033-12-06 08:53:20
secs2date($secs,$date);
$dt=$date->format('Y-m-d H:i:s');
echo $dt."<br>";
$sec2=date2secs($date,$datebeg);
echo '(1) ',$sec2,'***',$secs,'<br>';
$secs=2397472000; //2045-12-21 12:26:40
secs2date($secs,$date);
$dt=$date->format('Y-m-d H:i:s');
echo $dt."<br>";
$sec2=date2secs($date,$datebeg);
echo '(2) ',$sec2,'***',$secs,'<br>';
?>
----
Server IP: 69.147.83.199
Probable Submitter: 69.118.107.183
----
Manual Page -- http://php.net/manual/en/datetime.settimestamp.php
Edit -- https://master.php.net/note/edit/112932
Del: integrated -- https://master.php.net/note/delete/112932/integrated
Del: useless -- https://master.php.net/note/delete/112932/useless
Del: bad code -- https://master.php.net/note/delete/112932/bad+code
Del: spam -- https://master.php.net/note/delete/112932/spam
Del: non-english -- https://master.php.net/note/delete/112932/non-english
Del: in docs -- https://master.php.net/note/delete/112932/in+docs
Del: other reasons-- https://master.php.net/note/delete/112932
Reject -- https://master.php.net/note/reject/112932
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