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<?php $start = new DateTimeImmutable("2015-09-21 09:00"); $end = new DateTimeImmutable("2015-09-21 17:00"); $diff = $end->diff($start); print_r($diff);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
DateInterval Object ( [y] => 0 [m] => 0 [d] => 0 [h] => 8 [i] => 0 [s] => 0 [f] => 0 [invert] => 1 [days] => 0 [from_string] => )
Output for 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 - 8.1.28
DateInterval Object ( [y] => 0 [m] => 0 [d] => 0 [h] => 8 [i] => 0 [s] => 0 [f] => 0 [weekday] => 0 [weekday_behavior] => 0 [first_last_day_of] => 0 [invert] => 1 [days] => 0 [special_type] => 0 [special_amount] => 0 [have_weekday_relative] => 0 [have_special_relative] => 0 )
Output for 5.5.8 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
DateInterval Object ( [y] => 0 [m] => 0 [d] => 0 [h] => 8 [i] => 0 [s] => 0 [weekday] => 0 [weekday_behavior] => 0 [first_last_day_of] => 0 [invert] => 1 [days] => 0 [special_type] => 0 [special_amount] => 0 [have_weekday_relative] => 0 [have_special_relative] => 0 )
Output for 5.5.0 - 5.5.7
Fatal error: DateTime::diff() must be derived from DateTimeImmutable::diff in Unknown on line 0
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Fatal error: Class 'DateTimeImmutable' not found in /in/tdd2d on line 3
Process exited with code 255.

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