<?php

echo "timestamp now:".time().'<br>';

echo "timestamp of 10 September 2000:".strtotime('10 September 2000').'<br>';

echo "timestamp of next day:".strtotime('+1 day').'<br>';

echo "timestamp of next week:".strtotime('+1 week').'<br>';

echo "timestamp of next week 2day 4hours 2 seconds:".strtotime('+1 week 2day 4hours 2 seconds').'<br>';

echo "timestamp of next Thursday:".strtotime('+1 Thursday').'<br>';

echo "timestamp of last Monday:".strtotime('last day of Monday').'<br>';

?>