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<?php $interval = new DateInterval('P2D'); $dt = new DateTime('first day of January 2011'); var_dump($dt); $dt->add($interval); var_dump($dt); $dt = new DateTime('first day of January 2011'); $dt->sub($interval); var_dump($dt);
Output for 5.5.14 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(DateTime)#2 (3) { ["date"]=> string(26) "2011-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#2 (3) { ["date"]=> string(26) "2011-01-03 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#3 (3) { ["date"]=> string(26) "2010-12-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }
Output for 5.5.0 - 5.5.13
object(DateTime)#2 (3) { ["date"]=> string(19) "2011-01-01 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#2 (3) { ["date"]=> string(19) "2011-01-03 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#3 (3) { ["date"]=> string(19) "2010-12-30 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }
Output for 5.4.0 - 5.4.45
Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone.' in /in/gPb5j:4 Stack trace: #0 /in/gPb5j(4): DateTime->__construct('first day of Ja...') #1 {main} thrown in /in/gPb5j on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Uncaught exception 'Exception' with message 'DateTime::__construct(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead' in /in/gPb5j:4 Stack trace: #0 /in/gPb5j(4): DateTime->__construct('first day of Ja...') #1 {main} thrown in /in/gPb5j on line 4
Process exited with code 255.
Output for 5.2.3 - 5.2.17
Fatal error: Class 'DateInterval' not found in /in/gPb5j on line 2
Process exited with code 255.
Output for 5.0.0 - 5.2.2
<br /> <b>Fatal error</b>: Class 'DateInterval' not found in <b>/in/gPb5j</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.4.9
<br /> <b>Fatal error</b>: Cannot instantiate non-existent class: dateinterval in <b>/in/gPb5j</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Cannot instantiate non-existent class: dateinterval in <b>/in/gPb5j</b> on line <b>2</b><br />