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<?php $from = new DateTime('2016-01-01'); $to = new DateTime('2016-06-30'); var_dump($from); var_dump($to); var_dump($to->diff($from));
based on vqWjD
Output for 7.1.0 - 7.3.0alpha1
object(DateTime)#1 (3) { ["date"]=> string(26) "2016-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#2 (3) { ["date"]=> string(26) "2016-06-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateInterval)#3 (16) { ["y"]=> int(0) ["m"]=> int(5) ["d"]=> int(29) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["f"]=> float(0) ["weekday"]=> int(0) ["weekday_behavior"]=> int(0) ["first_last_day_of"]=> int(0) ["invert"]=> int(1) ["days"]=> int(181) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) }
Output for 5.4.30 - 7.0.20
object(DateTime)#1 (3) { ["date"]=> string(26) "2016-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#2 (3) { ["date"]=> string(26) "2016-06-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateInterval)#3 (15) { ["y"]=> int(0) ["m"]=> int(5) ["d"]=> int(29) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["weekday"]=> int(0) ["weekday_behavior"]=> int(0) ["first_last_day_of"]=> int(0) ["invert"]=> int(1) ["days"]=> int(181) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) }
Output for 5.3.27 - 5.3.29, 5.4.17 - 5.4.29
object(DateTime)#1 (3) { ["date"]=> string(19) "2016-01-01 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#2 (3) { ["date"]=> string(19) "2016-06-30 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateInterval)#3 (15) { ["y"]=> int(0) ["m"]=> int(5) ["d"]=> int(29) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["weekday"]=> int(0) ["weekday_behavior"]=> int(0) ["first_last_day_of"]=> int(0) ["invert"]=> int(1) ["days"]=> int(181) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) }
Output for 5.3.23 - 5.3.26, 5.4.13 - 5.4.16
object(DateTime)#1 (3) { ["date"]=> string(19) "2016-01-01 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTime)#2 (3) { ["date"]=> string(19) "2016-06-30 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateInterval)#3 (8) { ["y"]=> int(0) ["m"]=> int(5) ["d"]=> int(29) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["invert"]=> int(1) ["days"]=> int(181) }