The DateTime class
(PHP 5 >= 5.2.0)
Introduction
Representation of date and time.
Class synopsis
DateTime
implements
DateTimeInterface
{
/* Constants */
/* Methods */
public static DateTime createFromFormat
( string
}$format
, string $time
[, DateTimeZone $timezone
] )Predefined Constants
DateTime::ATOM
-
DATE_ATOM
- Atom (example: 2005-08-15T15:52:01+00:00)
-
DATE_COOKIE
- HTTP Cookies (example: Monday, 15-Aug-2005 15:52:01 UTC)
DateTime::ISO8601
-
DATE_ISO8601
- ISO-8601 (example: 2005-08-15T15:52:01+0000)
DateTime::RFC822
-
DATE_RFC822
- RFC 822 (example: Mon, 15 Aug 05 15:52:01 +0000)
DateTime::RFC850
-
DATE_RFC850
- RFC 850 (example: Monday, 15-Aug-05 15:52:01 UTC)
DateTime::RFC1036
-
DATE_RFC1036
- RFC 1036 (example: Mon, 15 Aug 05 15:52:01 +0000)
DateTime::RFC1123
-
DATE_RFC1123
- RFC 1123 (example: Mon, 15 Aug 2005 15:52:01 +0000)
DateTime::RFC2822
-
DATE_RFC2822
- RFC 2822 (example: Mon, 15 Aug 2005 15:52:01 +0000)
DateTime::RFC3339
-
DATE_RFC3339
-
Same as
DATE_ATOM
(since PHP 5.1.3) DateTime::RSS
-
DATE_RSS
- RSS (example: Mon, 15 Aug 2005 15:52:01 +0000)
DateTime::W3C
-
DATE_W3C
- World Wide Web Consortium (example: 2005-08-15T15:52:01+00:00)
Changelog
Version | Description |
---|---|
5.5.0 | The class now implements DateTimeInterface. |
5.4.24 | The COOKIE constant was changed to reflect RFC 1036 using a four digit year rather than a two digit year (RFC 850) as prior versions. |
5.2.2 | DateTime object comparison with the comparison operators changed to work as expected. Previously, all DateTime objects were considered equal (using ==). |
Table of Contents
- DateTime::add — Adds an amount of days, months, years, hours, minutes and seconds to a DateTime object
- DateTime::__construct — Returns new DateTime object
- DateTime::createFromFormat — Returns new DateTime object formatted according to the specified format
- DateTime::getLastErrors — Returns the warnings and errors
- DateTime::modify — Alters the timestamp
- DateTime::__set_state — The __set_state handler
- DateTime::setDate — Sets the date
- DateTime::setISODate — Sets the ISO date
- DateTime::setTime — Sets the time
- DateTime::setTimestamp — Sets the date and time based on an Unix timestamp
- DateTime::setTimezone — Sets the time zone for the DateTime object
- DateTime::sub — Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime object
Коментарии
A simple example to create the date time object by now with time zone
$Now = new DateTime('now', new DateTimeZone('Asia/Taipei'));
A simple example to print data time with format
echo $Now->format('Y-m-d H:i:s');