DateTimeImmutable::setTimestamp

    (PHP 5 >= 5.5.0, PHP 7, PHP 8)

    DateTimeImmutable::setTimestamp — Sets the date and time based on a Unix timestamp

    Descrizione

    public DateTimeImmutable::setTimestamp(int $timestamp): DateTimeImmutable

    Returns a new DateTimeImmutable object constructed from the old one, with the date and time set based on an Unix timestamp.

    Elenco dei parametri

    timestamp

    Unix timestamp representing the date. Setting timestamps outside the range of int is possible by using DateTimeImmutable::modify() with the @ format.

    Valori restituiti

    Returns a new DateTimeImmutable object with the modified data.

    Esempi

    Example #1 DateTimeImmutable::setTimestamp() example

    Stile orientato agli oggetti

    <?php
    $date     = new DateTimeImmutable();
    echo     $date->format('U = Y-m-d H:i:s') . "\n";

    $newDate = $date->setTimestamp(1171502725);
    echo     $newDate->format('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

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    User Contributed Notes 2 notes

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    0
    Philip
    3 years ago
    This function will not change the value of the DateTimeImmutable object as the method name might suggest. The object, after all, immutable.

    <?php
    $dti     = new DateTimeImmutable();
    echo     $dti->getTimestamp(); // e.g. 123456789
    $dti->setTimestamp(987654321);
    echo     $dti->getTimestamp(); // 123456789

    $x = $dti->setTimestamp (987654321);
    echo     $x->getTimestamp(); // 987654321
    ?>
    up
    -2
    lukin dot andrej at gmail dot com
    1 year ago
    While modifying Datetime with the timezone, the user should be aware that changing the timestamp using "@".\time() is not the same as changing the timestamp using setTimestamp().

    $now = new \DateTimeImmutable('August 30, 2023 09:00:00 GMT+01');
    $origin = $now->getTimestamp(); // 1693382400
    $usingAt = $now->modify('@'.$now->getTimestamp())->getTimestamp(); // 1693378800
    $usingSetTimestamp = $now->setTimestamp($now->getTimestamp())->getTimestamp(); // 1693382400

    var_dump($usingAt === $origin); // false
    var_dump($usingSetTimestamp === $origin); // true
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