Online PHP editor | output for nf5J2

Output for 5.5.14 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2015-08-02 03:59:59.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } int(1438480799)
Output for 7.3.32 - 7.3.33, 8.0.13: object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2015-08-02 03:59:59.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } int(1438487999)
Output for 5.5.0 - 5.5.13: object(DateTimeImmutable)#1 (3) { ["date"]=> string(19) "2015-08-02 03:59:59" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } int(1438480799)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45: Fatal error: Class 'DateTimeImmutable' not found in /in/nf5J2 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf5J2 on line 3 Fatal error: Class 'DateTimeImmutable' not found in /in/nf5J2 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf5J2 on line 3 Fatal error: Cannot instantiate non-existent class: datetimeimmutable in /in/nf5J2 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nf5J2 on line 3 Fatal error: Cannot instantiate non-existent class: datetimeimmutable in /in/nf5J2 on line 3