Online PHP editor | output for 1E03i

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $dt in /in/1E03i on line 4 Fatal error: Uncaught Error: Call to a member function format() on null in /in/1E03i:4 Stack trace: #0 {main} thrown in /in/1E03i on line 4
Process exited with code 255.
Output for 7.0.5 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: Notice: Undefined variable: dt in /in/1E03i on line 4 Fatal error: Uncaught Error: Call to a member function format() on null in /in/1E03i:4 Stack trace: #0 {main} thrown in /in/1E03i on line 4
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26: Fatal error: Uncaught Error: Call to a member function format() on null in /in/1E03i:4 Stack trace: #0 {main} thrown in /in/1E03i on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.4: Notice: Undefined variable: dt in /in/1E03i on line 4 Fatal error: Uncaught Error: Call to a member function format() on unknown in /in/1E03i:4 Stack trace: #0 {main} thrown in /in/1E03i on line 4
Process exited with code 255.
Output for 5.6.0 - 5.6.40: Notice: Undefined variable: dt in /in/1E03i on line 4 Fatal error: Call to a member function format() on null in /in/1E03i on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38: Notice: Undefined variable: dt in /in/1E03i on line 4 Fatal error: Call to a member function format() on a non-object in /in/1E03i on line 4
Process exited with code 255.
Output for 5.2.0 - 5.2.17: Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (first Monday of next month) at position 13 (o): The timezone could not be found in the database' in /in/1E03i:2 Stack trace: #0 /in/1E03i(2): DateTime->__construct('first Monday of...') #1 {main} thrown in /in/1E03i on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6: Fatal error: Class 'DateTime' not found in /in/1E03i on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Fatal error: Cannot instantiate non-existent class: datetime in /in/1E03i on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Cannot instantiate non-existent class: datetime in /in/1E03i on line 2