<?
$s = new \DateTime('2016-02-01', new \DateTimeZone('UTC'));
$e = new \DateTime('2016-03-01', new \DateTimeZone('UTC'));
$d = $e->diff($s);
var_dump($d);
<?
$s = new \DateTime('2016-02-01', new \DateTimeZone('UTC'));
$e = new \DateTime('2016-03-01', new \DateTimeZone('UTC'));
$d = $e->diff($s);
var_dump($d);
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
<?
$s = new \DateTime('2016-02-01', new \DateTimeZone('UTC'));
$e = new \DateTime('2016-03-01', new \DateTimeZone('UTC'));
$d = $e->diff($s);
var_dump($d);