3v4l.org

run code in 300+ PHP versions simultaneously
<?php $date1='24/11/2013'; $date2='09/11/2013'; if(strtotime($date1)>0){ echo "valid date1"; } if(strtotime($date2)>0){ echo "valid date2"; }

preferences:
37.2 ms | 402 KiB | 5 Q