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<?php date_default_timezone_set('Europe/Berlin'); $date1 = new DateTime("2015-03-29 02:00:00", new DateTimeZone('Europe/Berlin')); $date2 = new DateTime("2015-03-29 03:00:00", new DateTimeZone('UTC')); $date1->setTimezone(new DateTimeZone('UTC')); var_dump($date1); var_dump($date2); $interval = date_diff($date1, $date2); echo $interval->format('%H Hour(s) %I Minute(s) %S Second(s)' ); ?>
Output for 5.4.30 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 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, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(DateTime)#1 (3) { ["date"]=> string(26) "2015-03-29 01:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } object(DateTime)#2 (3) { ["date"]=> string(26) "2015-03-29 03:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } 02 Hour(s) 00 Minute(s) 00 Second(s)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.29
object(DateTime)#1 (3) { ["date"]=> string(19) "2015-03-29 01:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } object(DateTime)#2 (3) { ["date"]=> string(19) "2015-03-29 03:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } 02 Hour(s) 00 Minute(s) 00 Second(s)
Output for 5.2.0 - 5.2.17
object(DateTime)#1 (0) { } object(DateTime)#2 (0) { } Fatal error: Call to undefined function date_diff() in /in/1L67u on line 14
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/1L67u on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function date_default_timezone_set() in /in/1L67u on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: date_default_timezone_set() in /in/1L67u on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: date_default_timezone_set() in /in/1L67u on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: date_default_timezone_set() in /in/1L67u on line 3

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