public function testDateIsCreatedWithCustomTimeString()
{
$date = new ExpressiveDate('31 January 1991');
$this->assertEquals('31/01/1991', $date->format('d/m/Y'));
$date = new ExpressiveDate('+1 day');
$this->assertEquals(time() + 86400, $date->getTimestamp());
$date = new ExpressiveDate('-1 day');
$this->assertEquals(time() - 86400, $date->getTimestamp());
}
function eme_localised_date($mydate,$date_format='') {
global $eme_date_format, $eme_timezone;
if (empty($date_format))
$date_format = $eme_date_format;
// $mydate contains the timezone, but in case it doesn't we provide it
$eme_date_obj = new ExpressiveDate($mydate,$eme_timezone);
// Currently in the backend, the timezone is UTC, but maybe that changes in future wp versions
// so we search for the current timezone using date_default_timezone_get
// Since DateTime::format doesn't respect the locale, we use date_i18n here
// but date_i18n uses the WP backend timezone, so we need to account for the timezone difference
// All this because we don't want to use date_default_timezone_set() and wp doesn't set the backend
// timezone correctly ...
$wp_date = new ExpressiveDate($eme_date_obj->getDateTime(),date_default_timezone_get());
$tz_diff=$eme_date_obj->getOffset()-$wp_date->getOffset();
$result = date_i18n($date_format, $eme_date_obj->getTimestamp()+$tz_diff);
return $result;
}
/**
* Get a relative date string, e.g., 3 days ago.
*
* @param ExpressiveDate $compare
* @return string
*/
public function getRelativeDate($compare = null)
{
if (!$compare) {
$compare = new ExpressiveDate(null, $this->getTimezone());
}
$units = array('second', 'minute', 'hour', 'day', 'week', 'month', 'year');
$values = array(60, 60, 24, 7, 4.35, 12);
// Get the difference between the two timestamps. We'll use this to cacluate the
// actual time remaining.
$difference = abs($compare->getTimestamp() - $this->getTimestamp());
for ($i = 0; $i < count($values) and $difference >= $values[$i]; $i++) {
$difference = $difference / $values[$i];
}
// Round the difference to the nearest whole number.
$difference = round($difference);
if ($compare->getTimestamp() < $this->getTimestamp()) {
$suffix = 'from now';
} else {
$suffix = 'ago';
}
// Get the unit of time we are measuring. We'll then check the difference, if it is not equal
// to exactly 1 then it's a multiple of the given unit so we'll append an 's'.
$unit = $units[$i];
if ($difference != 1) {
$unit .= 's';
}
return $difference . ' ' . $unit . ' ' . $suffix;
}
