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<?php $datetime1 = new DateTime('2009-10-17'); $datetime2 = new DateTime('2009-10-13'); $interval = $datetime1->diff($datetime2); var_dump($interval); echo $interval->format('%R%a days');
Output for 7.1.0
object(DateInterval)#3 (16) { ["y"]=> int(0) ["m"]=> int(0) ["d"]=> int(4) ["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(4) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } -4 days
Output for 5.3.27 - 5.3.29, 5.4.17 - 5.6.28, 7.0.0 - 7.0.14
object(DateInterval)#3 (15) { ["y"]=> int(0) ["m"]=> int(0) ["d"]=> int(4) ["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(4) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } -4 days
Output for hhvm-3.10.0 - 3.12.0
object(DateInterval)#3 (0) { } -4 days
Output for 5.3.0 - 5.3.26, 5.4.0 - 5.4.16
object(DateInterval)#3 (8) { ["y"]=> int(0) ["m"]=> int(0) ["d"]=> int(4) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["invert"]=> int(1) ["days"]=> int(4) } -4 days
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::diff() in /in/rQQ5b on line 5
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/rQQ5b on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/rQQ5b on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/rQQ5b on line 3