3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo (new datetime('start of week'))->format('r');
Output for 8.3.0 - 8.3.4
Fatal error: Uncaught DateMalformedStringException: Failed to parse time string (start of week) at position 0 (s): The timezone could not be found in the database in /in/aO1aE:2 Stack trace: #0 /in/aO1aE(2): DateTime->__construct('start of week') #1 {main} thrown in /in/aO1aE on line 2
Process exited with code 255.
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17
Fatal error: Uncaught Exception: Failed to parse time string (start of week) at position 0 (s): The timezone could not be found in the database in /in/aO1aE:2 Stack trace: #0 /in/aO1aE(2): DateTime->__construct('start of week') #1 {main} thrown in /in/aO1aE on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Uncaught Exception: DateTime::__construct(): Failed to parse time string (start of week) at position 0 (s): The timezone could not be found in the database in /in/aO1aE:2 Stack trace: #0 /in/aO1aE(2): DateTime->__construct('start of week') #1 {main} thrown in /in/aO1aE on line 2
Process exited with code 255.
Output for 5.6.0 - 5.6.25
Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (start of week) at position 0 (s): The timezone could not be found in the database' in /in/aO1aE:2 Stack trace: #0 /in/aO1aE(2): DateTime->__construct('start of week') #1 {main} thrown in /in/aO1aE on line 2
Process exited with code 255.

preferences:
198.26 ms | 401 KiB | 225 Q