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<?php $begin = new DateTime('2015-02-29 00:00:00.000000'); $begin->modify('first day of this month'); var_dump($begin); ?>
based on gDGu4
Output for 5.4.30 - 7.2.6
object(DateTime)#1 (3) { ["date"]=> string(26) "2015-03-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }
Output for 5.3.0 - 5.4.29
object(DateTime)#1 (3) { ["date"]=> string(19) "2015-03-01 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }
Output for 5.2.13 - 5.2.17
Warning: DateTime::modify(): Failed to parse time string (first day of this month) at position 10 (o): The timezone could not be found in the database in /in/VAAY0 on line 3 object(DateTime)#1 (0) { }
Output for 5.2.0 - 5.2.12
object(DateTime)#1 (0) { }
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/VAAY0 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/VAAY0 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/VAAY0 on line 2