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Date modify
This is another way to add or subtract a date object with different month , days ,year , hour , minutes , sec etc.
This function is supported by PHP 5.2 or higher versions. So if you are running 5.2 version the you can use modify function as add or sub functions are supported by PHP 5.3 and higher only.
Here is an example on how to use modify function.
<?Php
date_default_timezone_set ("Asia/Kolkata");
$date1=new DateTime("now") ;
echo $date1->format('d-m-Y');
echo "<br>";
$date2=$date1->modify('+5 day');
echo $date2->format('d-m-Y');
?>
The output is here
05-03-2012
10-03-2012
We can change the highlighted line like this
$date2=$date1->modify('+3 month +5 day -1 year ');
Output of this change is here
05-03-2012
10-06-2011
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