The date_sub() function subtracts some days, months, years, hours, minutes, and seconds from a date.
PHP date_sub() Function has the following syntax.
date_sub(object,interval);
Parameter | Is required | Description |
---|---|---|
object | Required. | DateTime object returned by date_create() |
interval | Required. | DateInterval object |
PHP date_sub() Function returns a DateTime object on success. FALSE on failure.
Subtract 40 days from the 15th of March, 2013:
<?php
$date=date_create("2013-03-15");
date_sub($date,date_interval_create_from_date_string("40 days"));
echo date_format($date,"Y-m-d");
?>
The code above generates the following result.