Negative DateInterval

Question

I want to create a DatePeriod object with a negative DateInterval.

This creates a DatePeriod with the year increasing from today to 2016.

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Answer 1

You can used sub http://php.net/manual/en/datetime.sub.php

Here is example

$startDate = new \DateTime('2018-01-08 13:54:06');
$startDate->sub(new \DateInterval('P1D'));