public static function getDifferenceAsStringProvider()
{
return array(array(new \DateTime('2013-12-01', new \DateTimeZone('UTC')), new \DateTime('2013-12-01', new \DateTimeZone('UTC')), '0'), array(new \DateTime('2013-12-01 00:00:00', new \DateTimeZone('UTC')), new \DateTime('2013-12-01 00:00:01', new \DateTimeZone('UTC')), '1s'), array(new \DateTime('2013-12-01 00:00:00', new \DateTimeZone('UTC')), new \DateTime('2013-12-01 00:01:01', new \DateTimeZone('UTC')), '1m 1s'), array(new \DateTime('2013-12-01 00:00:00', new \DateTimeZone('UTC')), new \DateTime('2013-12-01 01:01:01', new \DateTimeZone('UTC')), '1h 1m 1s'), array(new \DateTime('2013-12-01 00:00:00', new \DateTimeZone('UTC')), new \DateTime('2013-12-02 01:01:01', new \DateTimeZone('UTC')), '1d 1h 1m 1s'), array(new \DateTime('2013-12-01 00:00:00', new \DateTimeZone('UTC')), new \DateTime('2014-01-02 01:01:01', new \DateTimeZone('UTC')), '1M 1d 1h 1m 1s'), array(new \DateTime('2013-12-01 00:00:00', new \DateTimeZone('UTC')), new \DateTime('2015-01-02 01:01:01', new \DateTimeZone('UTC')), '1Y 1M 1d 1h 1m 1s'));
}