DateTimeImmutable creates class but it never changes itself when data is modified

DateTimeImmutable

We can use DateTimeImmutable in place of DateTime class when we want the original object is not to be modified.

Using date add ...

$date1=new DateTime('2018-04-23'); // date object created. 
$date1->add(new DateInterval('P1Y3M')); // interval of 1 year 3 months added
echo $date1->format('Y-M-d'); // Output is 2019-Jul-23
/// by using DateTimeImmutable ///
$date1=new DateTimeImmutable('2018-04-23'); // date object created . 
$date1->add(new DateInterval('P1Y3M')); // interval of 1 year 3 months added
echo $date1->format('Y-M-d'); //  Output is 2018-Apr-23

In case of date object created using DateTimeImmutable after adding the interval the original value never changes.

PHP Date Functions setDate() : Set date for date object Timestamp in PHP Displaying calendar for selection of date by user

Subscribe to our YouTube Channel here

This article is written by plus2net.com team. https://www.plus2net.com

plus2net.com