3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
f<?php $datetime = new DateTime('first day of this month'); echo $datetime->format('w');
Output for 5.3.0 - 5.4.45, 5.6.28, 7.0.14 - 7.1.0
f4
Output for 5.5.24, 5.5.35 - 5.6.7, 5.6.21, 7.0.6
f0
Output for 5.5.25 - 5.5.29, 5.5.34, 5.6.8 - 5.6.14, 5.6.20, 7.0.5
f5
Output for 5.5.30 - 5.5.33, 5.6.15 - 5.6.19, 7.0.0 - 7.0.4
f2
Output for 5.2.0 - 5.2.17
f Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (first day of this month) at position 10 (o): The timezone could not be found in the database' in /in/qWelp:2 Stack trace: #0 /in/qWelp(2): DateTime->__construct('first day of th...') #1 {main} thrown in /in/qWelp on line 2
Process exited with code 255.
Output for 5.0.0 - 5.1.6
f Fatal error: Class 'DateTime' not found in /in/qWelp on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.9
f Fatal error: Cannot instantiate non-existent class: datetime in /in/qWelp on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
f Fatal error: Cannot instantiate non-existent class: datetime in /in/qWelp on line 2