3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php date('d-m-Y', strtotime("first $day of this week"));
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: day in /in/g9SPU on line 3
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: day in /in/g9SPU on line 3