/**
* Static method that returns a timestamp after applying a time
* difference to it.
*
* @static
* @param timeStamp The original ISO timestamp
* @param timeDiff The time difference that we'd like to apply to the
* original timestamp
*/
function getDateWithOffset($timeStamp, $timeDiff)
{
if ($timeDiff != 0) {
$t = new Timestamp($timeStamp);
//
// we can't use the addSeconds method with a negative offset
// so we have to check wether the offset is positive or negative
// and then use the correct one...
//
if ($timeDiff > 0) {
$t->addSeconds($timeDiff * 3600);
} else {
$t->subtractSeconds($timeDiff * -3600);
}
$date = $t->getTimestamp();
} else {
$date = $timeStamp;
}
return $date;
}
