Add 40 days to March 15, 2013:
<?php$date=date_create("2013-03-15");date_add($date,date_interval_create_from_date_string("40 days"));echo date_format($date,"Ymd");?>The date_add() function adds day, month, year, hour, minute and second to a date.
date_add( object,interval);
| parameter | describe |
|---|---|
| object | Required. Specifies the DateTime object returned by date_create(). |
| interval | Required. Specifies a DateInterval object. |
| Return value: | Returns a DateTime object if successful, or FALSE if failed. |
|---|---|
| PHP version: | 5.3+ |