3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo date('Y-m-d', mktime(0,0,0,date('n')-1,1,date('Y'))); echo "<br>".date("Y-m-d"); ?>
Output for 4.3.0 - 7.1.0
2013-12-01<br>2014-01-29