date_default_timezone_set
This function calculates the difference up to the second.
<?php
function date_diff($start, $end="NOW")
{
$sdate = strtotime($start);
$edate = strtotime($end);
$time = $edate - $sdate;
if($time>=0 && $time<=59) {
// Seconds
$timeshift = $time.' seconds ';
} elseif($time>=60 && $time<=3599) {
// Minutes + Seconds
$pmin = ($edate - $sdate) / 60;
$premin = explode('.', $pmin);
$presec = $pmin-$premin[0];
$sec = $presec*60;
$timeshift = $premin[0].' min '.round($sec,0).' sec ';
} elseif($time>=3600 && $time<=86399) {
// Hours + Minutes
$phour = ($edate - $sdate) / 3600;
$prehour = explode('.',$phour);
$premin = $phour-$prehour[0];
$min = explode('.',$premin*60);
$presec = '0.'.$min[1];
$sec = $presec*60;
$timeshift = $prehour[0].' hrs '.$min[0].' min '.round($sec,0).' sec ';
} elseif($time>=86400) {
// Days + Hours + Minutes
$pday = ($edate - $sdate) / 86400;
$preday = explode('.',$pday);
$phour = $pday-$preday[0];
$prehour = explode('.',$phour*24);
$premin = ($phour*24)-$prehour[0];
$min = explode('.',$premin*60);
$presec = '0.'.$min[1];
$sec = $presec*60;
$timeshift = $preday[0].' days '.$prehour[0].' hrs '.$min[0].' min '.round($sec,0).' sec ';
}
return $timeshift;
}
// EXAMPLE:
$start_date = 2010-03-15 13:00:00
$end_date = 2010-03-17 09:36:15
echo date_diff($start_date, $end_date);
?>
Returns: 1days 20hours 36min 15sec
Can be taken up to centuries - if you do the calculations.
Hope this finally helps someone! :D
Description
This function is an alias of: DateTime::diff
add a note
User Contributed Notesdate_diff
eugene at ultimatecms dot co dot za
17-Mar-2010 08:58
17-Mar-2010 08:58
mark at dynom dot nl
02-Jul-2009 02:44
02-Jul-2009 02:44
If you simply want to compare two dates, using conditional operators works too:
<?php
$start = new DateTime('08-06-1995 Europe/Copenhagen'); // DD-MM-YYYY
$end = new DateTime('22-11-1968 Europe/Amsterdam');
if ($start < $end) {
echo "Correct order";
} else {
echo "Incorrect order, end date is before the starting date";
}
?>
tom at knapp2meter dot tk
16-Apr-2009 05:06
16-Apr-2009 05:06
A simple way to get the time lag (format: <hours>.<one-hundredth of one hour>).
Hier ein einfacher Weg zur Bestimmung der Zeitdifferenz (Format: <Stunden>.<hundertstel Stunde>).
<?php
function GetDeltaTime($dtTime1, $dtTime2)
{
$nUXDate1 = strtotime($dtTime1->format("Y-m-d H:i:s"));
$nUXDate2 = strtotime($dtTime2->format("Y-m-d H:i:s"));
$nUXDelta = $nUXDate1 - $nUXDate2;
$strDeltaTime = "" . $nUXDelta/60/60; // sec -> hour
$nPos = strpos($strDeltaTime, ".");
if (nPos !== false)
$strDeltaTime = substr($strDeltaTime, 0, $nPos + 3);
return $strDeltaTime;
}
?>