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<?php $dateTime = new DateTime('2011-08-01 00:00:00'); echo $dateTime->diff(new DateTime('2011-10-01 00:00:01'))->format('%m'); ?>
Output for 7.3.32 - 7.3.33, 8.0.13, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
2
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30
1
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::diff() in /in/UBTLQ on line 3
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/UBTLQ on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/UBTLQ on line 3
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, expecting ',' or ';' in /in/UBTLQ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/UBTLQ on line 3
Process exited with code 255.

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