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<?php echo date_default_timezone_get() . "\n"; date_default_timzone_set('UTC'); echo date_default_timezone_get() . "\n"; date_default_timezone_set(''); echo date_default_timezone_get() . "\n";
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.2.18, 8.3.0 - 8.3.6
Europe/Amsterdam Fatal error: Uncaught Error: Call to undefined function date_default_timzone_set() in /in/JK6vQ:5 Stack trace: #0 {main} thrown in /in/JK6vQ on line 5
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 8.0.13
UTC Fatal error: Uncaught Error: Call to undefined function date_default_timzone_set() in /in/JK6vQ:5 Stack trace: #0 {main} thrown in /in/JK6vQ on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Europe/Amsterdam Fatal error: Call to undefined function date_default_timzone_set() in /in/JK6vQ on line 5
Process exited with code 255.

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