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<?php $date1 = new DateTime('2013-01-01'); $date2 = new DateTime('2013-01-02'); var_dump($date1->diff($date2)->invert); var_dump($date2->diff($date1)->invert);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(0) int(1)
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::diff() in /in/iY9lC on line 4
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/iY9lC on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/iY9lC on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/iY9lC on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/iY9lC on line 4
Process exited with code 255.