(PHP 5 >= 5.1.0RC1)
object
DateTime object.
modify
String in a relative format accepted by strtotime().
Returns NULL on success or FALSE on failure.
例 1. A date_modify() example
<?php $date = new DateTime("2006-12-12"); $date->modify("+1 day"); echo $date->format("Y-m-d"); ?>
上例将输出:
2006-12-13