PHP | date_timestamp_set() Function

The date_timestamp_set() function is an inbuilt function in PHP which is used to sets the date and time based on an Unix timestamp. This function returns the DateTime object for method chaining or False on failure.

Syntax:

• Procedural style:

  date_timestamp_set( $object, $unixtimestamp )

• Object oriented style:

  DateTime::setTimestamp( $unixtimestamp )

Parameters: This function accepts two parameters as mentioned above and described below:

• $object: It is a mandatory parameter which is used to specify the DateTime object which is returned by the date_create() function.
• $unixtimestamp: This parameter is used to set the Unix timestamp representing the date.

Return Value: This function returns the DateTime object on success or False on failure.

Below programs illustrate the date_timestamp_set() function in PHP:

Program 1:

<?php

// Create DateTime object
$date = date_create();

// Display DateTime in given format
echo date_format($date, 'U = d-m-Y H:i:s') . "\n";

// date_timestamp_set function to Set
// Unix timestamp
date_timestamp_set($date, 1373502124);

// Display DateTime in given format
echo date_format($date, 'U = d-m-Y H:i:s');
?>

Output:

1537159667 = 17-09-2018 04:47:47
1373502124 = 11-07-2013 00:22:04

Program 2:

<?php

// Create DateTime object
$date = new DateTime();

// Display DateTime in given format
echo $date->format('U = d-m-Y H:i:s') . "\n";

// date_timestamp_set function to Set
// Unix timestamp
$date->setTimestamp(1171564674);

// Display DateTime in given format
echo $date->format('U = d-m-Y H:i:s');
?>

Output:

1537159667 = 17-09-2018 04:47:47
1171564674 = 15-02-2007 18:37:54

Reference: http://php.net/manual/en/datetime.settimestamp.php