PHP Tutorial - PHP date_sub() Function






Definition

The date_sub() function subtracts some days, months, years, hours, minutes, and seconds from a date.

Syntax

PHP date_sub() Function has the following syntax.

date_sub(object,interval);

Parameter

ParameterIs requiredDescription
objectRequired.DateTime object returned by date_create()
intervalRequired.DateInterval object

Return

PHP date_sub() Function returns a DateTime object on success. FALSE on failure.





Example

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.