Web студия "GrandView"

Список параметров

object: DateTime object.
modify: String in a relative format accepted by strtotime().

Примеры

Пример 1. A date_modify() example

<?php $date = new DateTime("2006-12-12"); $date->modify("+1 day"); echo $date->format("Y-m-d"); ?>
Результат выполнения данного примера:
2006-12-13

add a note User Contributed Notes
date_modify

someone
14-Sep-2007 11:46


I decided to enhance the DateTime object by taking advantage of method chaining.



<?php



class DateTimeChain extends DateTime {



    public function modify ($modify) {

        parent::modify($modify);

        return $this;

    }



    public function setDate ($year, $month, $day) {

        parent::setDate($year, $month, $day);

        return $this;

    }



    public function setISODate ($year, $week, $day = null) {

        parent:: setISODate($year, $week, $day);

        return $this;

    }



    public function setTime ($hour, $minute, $second = null) {

        parent::setTime($hour, $minute, $second);

        return $this;

    }



    public function setTimezone ($timezone) {

        parent::setTimezone($timezone);

        return $this;

    }



}



$t = new DateTimeZone('America/Los_Angeles');

$d = new DateTimeChain();

var_dump($d->setTimezone($t)->modify('5years')->format(DATE_RFC822));



?>

mike_d_olson [at] yahoo [dot] no-spam
08-Aug-2007 04:17


I had problems with setting an existing DateTime object to an exact Unix timestamp using modify("@$timestamp"), which seems to always be relative.  So I wrote this function, which does the trick:



<?php

    function set_time(DateTime $dt, $timestamp)

    {

        $tzo = new DateTimeZone($dt->getTimezone()->getName());

        $new_dt = new DateTime("@$timestamp", new DateTimeZone('UTC'));

        $new_dt->setTimezone($tzo);

        $dt->setDate($new_dt->format('Y'), $new_dt->format('m'), $new_dt->format('d'));

        $dt->setTime($new_dt->format('H'), $new_dt->format('i'), $new_dt->format('s'));

    }

?>

add a note

date_modify

Описание

Список параметров

Возвращаемые значения

Примеры

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