3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo date('N', strtotime('First day of '.date('F').' '.date('Y')));
based on BPjgn
Output for 5.3.0 - 7.1.0
1
Output for 5.1.0 - 5.2.17
4
Output for 4.3.0 - 5.0.5
N