3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $d1 = new \Datetime('2017-5-1'); $d2 = new \Datetime('2017-6-1'); $diff = $d1->diff($d2); var_dump($diff); echo sprintf('%d Month\\s', $diff->m) . PHP_EOL; echo sprintf('...But %d Day\\s', $diff->d) . PHP_EOL;
based on P8k7a
Output for 7.1.0 - 7.2.6
object(DateInterval)#3 (16) { ["y"]=> int(0) ["m"]=> int(1) ["d"]=> int(1) ["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(0) ["days"]=> int(31) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } 1 Month\s ...But 1 Day\s
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.0.20
object(DateInterval)#3 (15) { ["y"]=> int(0) ["m"]=> int(1) ["d"]=> int(1) ["h"]=> int(0) ["i"]=> int(0) ["s"]=> int(0) ["weekday"]=> int(0) ["weekday_behavior"]=> int(0) ["first_last_day_of"]=> int(0) ["invert"]=> int(0) ["days"]=> int(31) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } 1 Month\s ...But 1 Day\s
Output for hhvm-3.15.4
object(DateInterval)#3 (0) { } 1 Month\s ...But 1 Day\s