3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a_date = "2012-02"; echo 'max day of 2012-02 is ' . date('t', strtotime($a_date)); echo PHP_EOL; $a_date = "2009-02"; echo 'max day of 2009-02 is ' . date('t', strtotime($a_date));

preferences:
109.24 ms | 1968 KiB | 5 Q