When the exact time is important then it is important to note the difference between this and the UnixTimeStamp. The function will change the timestamp if necessary to take into account the daylight savings time.
e.g. Working with the 'Europe/London' timezone and setting the DateTime object to a timestamp of 1288486753 will result in the function automatically altering it to 1288490353.
This is because it is taking the fall time instead of the summer time (they will both be Sun, 31-Oct-2010 01:X:Y (I didn't check the hour and minute)).
Sincerely,
Aouie
DateTime::setTimestamp
date_timestamp_set
(PHP 5 >= 5.3.0)
DateTime::setTimestamp -- date_timestamp_set — Sets the date and time based on an Unix timestamp
Description
Object oriented style
Procedural style
Sets the date and time based on an Unix timestamp.
Parameters
-
object -
Procedural style only: A DateTime object returned by date_create(). The function modifies this object.
-
unixtimestamp -
Unix timestamp representing the date.
Return Values
Returns the DateTime object for method chaining or FALSE on failure.
Examples
Example #1 DateTime::setTimestamp() example
Object oriented style
<?php
$date = new DateTime();
echo $date->format('U = Y-m-d H:i:s') . "\n";
$date->setTimestamp(1171502725);
echo $date->format('U = Y-m-d H:i:s') . "\n";
?>
Procedural style
<?php
$date = date_create();
echo date_format($date, 'U = Y-m-d H:i:s') . "\n";
date_timestamp_set($date, 1171502725);
echo date_format($date, 'U = Y-m-d H:i:s') . "\n";
?>
The above examples will output something similar to:
1272508903 = 2010-04-28 22:41:43 1171502725 = 2007-02-14 20:25:25
Notes
Using the Unix timestamp format to construct a new DateTime object is an alternative when using PHP 5.2, as shown in the example below.
Example #2 DateTime::setTimestamp() alternative in PHP 5.2
<?php
$ts = 1171502725;
$date = new DateTime("@$ts");
echo $date->format('U = Y-m-d H:i:s') . "\n";
?>
The above example will output something similar to:
1171502725 = 2007-02-14 20:25:25
See Also
- DateTime::getTimestamp() - Gets the Unix timestamp
If your PHP version is lower than 5.3 then you can use this class to be able to use the functions "setTimestamp" and "getTimestamp":
<?php
class MyDateTime extends DateTime
{
public function setTimestamp( $timestamp )
{
$date = getdate( ( int ) $timestamp );
$this->setDate( $date['year'] , $date['mon'] , $date['mday'] );
$this->setTime( $date['hours'] , $date['minutes'] , $date['seconds'] );
}
public function getTimestamp()
{
return $this->format( 'U' );
}
}
$date = new MyDateTime();
$date->setTimestamp( $someTimestamp );
echo $date->format( 'd/m/Y H:i:s' );
?>
