3v4l.org

run code in 300+ PHP versions simultaneously
<?php $derp = mktime(0, 0, 0, date('n'), date('j') - date('j') + 1); echo "\n".date('c', $derp); echo "\n".date('Y-m-d h:i:s a', $derp);

preferences:
40.28 ms | 402 KiB | 5 Q