Get timestamp of today and yesterday in php

Question

How can I get the timestamp of 12 o'clock of today, yesterday and the day before yesterday by using strtotime() function in php?

12 o'clock is a variable and would be changed by user.

Answer 1

$hour = 12;

$today              = strtotime($hour . ':00:00');
$yesterday          = strtotime('-1 day', $today);
$dayBeforeYesterday = strtotime('-1 day', $yesterday);