The DateTimeImmutable::setTimestamp() function is an inbuilt function in PHP which is used to set the date and time based on an Unix timestamp.
Syntax:
DateTimeImmutable DateTimeImmutable::setTimestamp( int $unixtimestamp )
Parameters: This function accepts single parameter $unixtimestamp which is used to set the Unix timestamp representing the date.
Return Values: This function returns the DateTimeImmutable object.
Below programs illustrate the DateTimeImmutable::setTimestamp() function in PHP:
Program 1:
<?php // PHP program to illustrate DateTimeImmutable::setTimestamp() // function     // Creating a new DateTimeImmutable() object $datetimeImmutable = new DateTimeImmutable();   // Initialising a unixtimestamp $unixtimestamp = '1171564674';   // Calling the DateTimeImmutable::setTimestamp() function $a = $datetimeImmutable->setTimestamp($unixtimestamp);   // Getting a new set of date and time in the // format of 'U = d-m-Y H:i:s' echo $datetimeImmutable->format('U = d-m-Y H:i:s'); ?> |
Output:
1570187170 = 04-10-2019 11:06:10
Program 2:
<?php // PHP program to illustrate DateTimeImmutable::setTimestamp() // function     // Creating a new DateTimeImmutable() object $datetimeImmutable = new DateTimeImmutable();   // Calling the DateTimeImmutable::setTimestamp() function // with the parameter of unixtimestamp $a = $datetimeImmutable->setTimestamp(1291564453);   // Getting a new set of date and time in the // format of 'U = d-m-Y H:i:s' echo $datetimeImmutable->format('U = d-m-Y H:i:s'); ?> |
Output:
1570187171 = 04-10-2019 11:06:11
Reference: https://www.php.net/manual/en/datetimeimmutable.settimestamp.php
