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<?php $t = new DateTimeZone('Asia/Tokyo'); echo 'original'.PHP_EOL; var_dump($t); echo 'serialize'.PHP_EOL; var_dump(serialize($t));
based on 5EV8V
Output for 5.5.0 - 7.2.0
original object(DateTimeZone)#1 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(10) "Asia/Tokyo" } serialize string(82) "O:12:"DateTimeZone":2:{s:13:"timezone_type";i:3;s:8:"timezone";s:10:"Asia/Tokyo";}"
Output for 5.2.0 - 5.4.45
original object(DateTimeZone)#1 (0) { } serialize string(24) "O:12:"DateTimeZone":0:{}"
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTimeZone' not found in /in/8LmP2 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetimezone in /in/8LmP2 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetimezone in /in/8LmP2 on line 2