3v4l.org

run code in 300+ PHP versions simultaneously
<?php $target_days=mktime(0,0,0,12,02,2015); $today=time(); $diff_days=($target_days - $today); $days=(int)($diff_days/86400); echo "days till next birthday $days"; ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
days till next birthday 182
preferences:
222.11 ms | 404 KiB | 325 Q