3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $dt = new DateTime(); $dt->modify('first day in month'); $dt->add(new DateInterval('P1D')); echo $dt->format('Y-m-d');
based on V94DB
Output for 5.3.2 - 5.4.32, 5.6.28, 7.0.14 - 7.1.0
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2014-09-23
Output for 7.0.6
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-05-04
Output for 5.6.14, 7.0.5
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-03
Output for 7.0.4
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-11
Output for 7.0.3
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-19
Output for 7.0.2
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-23
Output for 7.0.1
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-24
Output for 7.0.0
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-27
Output for 5.6.15, hhvm-3.12.0
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-29
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.6.21
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-05-03
Output for 5.6.20
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-10
Output for 5.6.19
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-08
Output for 5.6.18
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-15
Output for 5.6.17
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-20
Output for 5.6.16
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-28
Output for 5.6.13
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-16
Output for 5.6.12
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-20
Output for 5.6.11
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-24
Output for 5.6.10
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-26
Output for 5.6.9
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-28
Output for 5.6.8
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-30
Output for 5.6.7
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-05-26
Output for 5.5.35
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-05-23
Output for 5.5.34
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-11
Output for 5.5.33
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-09
Output for 5.5.32
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-18
Output for 5.5.31
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-03-21
Output for 5.5.30
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-02
Output for 5.5.29
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-17
Output for 5.5.28
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-21
Output for 5.5.27
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-23
Output for 5.5.26
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-27
Output for 5.5.25
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-04-29
Output for 5.5.24
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2016-05-24
Output for 5.4.39 - 5.4.45
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2015-09-22
Output for 5.4.34 - 5.4.38
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 2015-03-16
Output for 5.3.0 - 5.3.1
2014-09-01
Output for 5.2.13 - 5.2.17
Warning: DateTime::modify(): Failed to parse time string (first day in month) at position 10 (i): The timezone could not be found in the database in /in/sb3gC on line 4 Fatal error: Call to undefined method DateTime::add() in /in/sb3gC on line 5
Process exited with code 255.
Output for 5.2.0 - 5.2.12
Fatal error: Call to undefined method DateTime::add() in /in/sb3gC on line 5
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/sb3gC on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/sb3gC on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/sb3gC on line 3