I have standart sql datetime format: 2016-10-24 14:26:53.000
And i dont know how to convert into UTC format should be something like: 138853800000
Can be done in sql or php.
I tried something like:
$d = DateTime::createFromFormat('Y-m-d', 2016-10-24, new DateTimeZone('UTC'));
echo $d->getTimestamp().'<br>';
I works but after i add hours minutes it stops