3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $target_days = mktime(0,0,0,04,10,2014);// modify the birth day 12/31/2013 $today = time(); $diff_days = ($target_days - $today); $days = (int)($diff_days/86400); print "Days till next birthday: $days days!"; ?> - See more at: http://www.w3resource.com/php-exercises/php-date-exercises.php#sthash.xJA52BEw.dpuf
based on 7IUuW
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Days till next birthday: -177 days! - See more at: http://www.w3resource.com/php-exercises/php-date-exercises.php#sthash.xJA52BEw.dpuf