<?php
$date = new DateTime("2015-10-26", new DateTimeZone("Europe/London"));
$baseDate = new DateTime("1971-01-01", new DateTimeZone("Europe/London"));
var_dump($date->diff($baseDate,true)->h);
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
int(0)