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<?php $now = unserialize('O:8:"DateTime":3:{s:4:"date";s:19:"2013-11-26 09:15:42";s:13:"timezone_type";i:3;s:8:"timezone";s:16:"Europe/Amsterdam";}'); $date = DateTime::createFromFormat('YmdHis', '2004' . $now->format('md') . '235959'); $diff = $date->diff($now, true); print_r($now->sub(date_interval_create_from_date_string('3286 days 9 hours 15 minutes 43 seconds'))); die; printf( 'Got %s and expected %s', $now->sub($diff)->format(DateTime::ISO8601), $date->format(DateTime::ISO8601) );
Output for 5.4.30 - 5.4.45, 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 - 7.3.33, 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
DateTime Object ( [date] => 2004-11-26 23:59:59.000000 [timezone_type] => 3 [timezone] => Europe/Amsterdam )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.29, 5.5.0 - 5.5.13
DateTime Object ( [date] => 2004-11-26 23:59:59 [timezone_type] => 3 [timezone] => Europe/Amsterdam )
Output for 5.2.10 - 5.2.17
Fatal error: Call to undefined method DateTime::createFromFormat() in /in/tVcaP on line 4
Process exited with code 255.
Output for 5.2.0 - 5.2.9
Fatal error: Call to undefined method DateTime::createfromformat() in /in/tVcaP on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/tVcaP on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/tVcaP on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/tVcaP on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/tVcaP on line 12
Process exited with code 255.

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