Online PHP editor | output for KXYvi

@ 2018-03-24T01:40:40Z

<?php

$datetime1 = new \DateTime('01.03.2018');
$datetime2 = new \DateTime('31.03.2018');
$interval = $datetime1->diff($datetime2);
var_dump($interval->format('%m'));
//string(1) "1"

$datetime1 = new \DateTime('01.01.2018');
$datetime2 = new \DateTime('31.01.2018');
$interval = $datetime1->diff($datetime2);
var_dump($interval->format('%m'));
//string(1) "0"

$datetime1 = new \DateTime('01.02.2018');
$datetime2 = new \DateTime('28.02.2018');
$interval = $datetime1->diff($datetime2);
var_dump($interval->format('%m'));
//string(1) "0"

Output for 7.3.32 - 7.3.33, 8.0.13, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: string(1) "0" string(1) "0" string(1) "0"
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 string(1) "0" string(1) "0" string(1) "0"
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30: string(1) "1" string(1) "0" string(1) "0"

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