Can i use DateTime Object with an timestamp as reference insteadof an formated string.

Hello there,

I Use timestamps for logging etc..
But i need this timestamp to let is show the right time in different
timezones.

Now i wanted to use DateTime object, but it seems it needs a string as
reference, so i can't use a timestamp to re-generate that time.

How can i fix this?

Thx in advance.

2007. 03. 7, szerda keltezéssel 12.58-kor Mathijs ezt Ã*rta:
> Hello there,
>
> I Use timestamps for logging etc..
> But i need this timestamp to let is show the right time in different
> timezones.
>
> Now i wanted to use DateTime object, but it seems it needs a string as
> reference, so i can't use a timestamp to re-generate that time.
>
> How can i fix this?

I think
http://hu2.php.net/manual/hu/function.strftime.php
should be okay

greets
Zoltán Németh

>
> Thx in advance.
>

Németh Zoltán wrote:
> 2007. 03. 7, szerda keltezéssel 12.58-kor Mathijs ezt Ã*rta:
>> Hello there,
>>
>> I Use timestamps for logging etc..
>> But i need this timestamp to let is show the right time in different
>> timezones.
>>
>> Now i wanted to use DateTime object, but it seems it needs a string as
>> reference, so i can't use a timestamp to re-generate that time.
>>
>> How can i fix this?
>
> I think
> http://hu2.php.net/manual/hu/function.strftime.php
> should be okay
>
> greets
> Zoltán Németh
>
>> Thx in advance.
>>

I hoped to avoid this.
I Now i need an extra function call to get the right time.
Hoped there was a way to give just the timestamp directly.

Mathijs wrote:
> Hello there,
>
> I Use timestamps for logging etc..

so you do something like this no?:

$stamp = mktime();

so if you want to use DateTime why not do this?:

$stamp = new DateTime;

alternatively if you are stuck with the original integer timestamp,
then you can get round the issue like so:


$stamp = mktime();
$date = getdate($stamp);

$obj = new DateTime;
$obj->setDate($date['year'], $date['mon'], $date['mday']);
$obj->setTime($date['hours'], $date['minutes'], $date['seconds']);
$obj->setTimezone('er?');

or something like that.

seems rather stupid that DateTime doesn't accept a timestamp, but there is
probably a good reason ... as Richard Lynch pointed out date/time stuff seems
easy but is actually very very hard (and something computers will probably
never get 'right')

anyway, everything you need is right here if care to read it:

http://php.net/manual/en/ref.datetime.php

> But i need this timestamp to let is show the right time in different
> timezones.
>
> Now i wanted to use DateTime object, but it seems it needs a string as
> reference, so i can't use a timestamp to re-generate that time.
>
> How can i fix this?
>
> Thx in advance.
>

Jochem Maas wrote:
> Mathijs wrote:
>> Hello there,
>>
>> I Use timestamps for logging etc..
>
> so you do something like this no?:
>
> $stamp = mktime();
>
> so if you want to use DateTime why not do this?:
>
> $stamp = new DateTime;
>
> alternatively if you are stuck with the original integer timestamp,
> then you can get round the issue like so:
>
>
> $stamp = mktime();
> $date = getdate($stamp);
>
> $obj = new DateTime;
> $obj->setDate($date['year'], $date['mon'], $date['mday']);
> $obj->setTime($date['hours'], $date['minutes'], $date['seconds']);
> $obj->setTimezone('er?');
>
> or something like that.
>
> seems rather stupid that DateTime doesn't accept a timestamp, but there is
> probably a good reason ... as Richard Lynch pointed out date/time stuff seems
> easy but is actually very very hard (and something computers will probably
> never get 'right')
>
> anyway, everything you need is right here if care to read it:
>
> http://php.net/manual/en/ref.datetime.php
>
>> But i need this timestamp to let is show the right time in different
>> timezones.
>>
>> Now i wanted to use DateTime object, but it seems it needs a string as
>> reference, so i can't use a timestamp to re-generate that time.
>>
>> How can i fix this?
>>
>> Thx in advance.
>>

Thx for that idea.
I Now created an class/object which extends from DateTime.
Hope this can help other ppl with the same prob as well.

Thx.
Mathijs.


class DateTimeHandler extends DateTime {
public final function __construct($time=null, DateTimeZone $object=null) {
if (is_numeric($time)) {
parent::__construct();
$datetime = getdate($time);
parent::setDate($datetime['year'], $datetime['mon'], $datetime['mday']);
parent::setTime($datetime['hours'], $datetime['minutes'],
$datetime['seconds']);
parent::setTimezone($object);
return $this;
} else {
if ($object) {
return parent::__construct($time, $object);
} else {
return parent::__construct();
}
}
}
}

Personally, I'd log it in GMT or UTC or whatever it is, and then only
change time-zones on display.

Logging various different time-zones within the actualy data is just
going to be confusing, probably...

Depends on what you are doing, though, I guess...

YMMV

On Wed, March 7, 2007 7:12 am, Mathijs wrote:
> Németh Zoltán wrote:
>> 2007. 03. 7, szerda keltezéssel 12.58-kor Mathijs ezt Ã*rta:
>>> Hello there,
>>>
>>> I Use timestamps for logging etc..
>>> But i need this timestamp to let is show the right time in
>>> different
>>> timezones.
>>>
>>> Now i wanted to use DateTime object, but it seems it needs a string
>>> as
>>> reference, so i can't use a timestamp to re-generate that time.
>>>
>>> How can i fix this?
>>
>> I think
>> http://hu2.php.net/manual/hu/function.strftime.php
>> should be okay
>>
>> greets
>> Zoltán Németh
>>
>>> Thx in advance.
>>>
>
> I hoped to avoid this.
> I Now i need an extra function call to get the right time.
> Hoped there was a way to give just the timestamp directly.
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>


--
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some starving artist.
http://cdbaby.com/browse/from/lynch
Yeah, I get a buck. So?

Richard Lynch wrote:
> Personally, I'd log it in GMT or UTC or whatever it is, and then only
> change time-zones on display.
>
> Logging various different time-zones within the actualy data is just
> going to be confusing, probably...
>
> Depends on what you are doing, though, I guess...
>
> YMMV
>
> On Wed, March 7, 2007 7:12 am, Mathijs wrote:
>> Németh Zoltán wrote:
>>> 2007. 03. 7, szerda keltezéssel 12.58-kor Mathijs ezt Ã*rta:
>>>> Hello there,
>>>>
>>>> I Use timestamps for logging etc..
>>>> But i need this timestamp to let is show the right time in
>>>> different
>>>> timezones.
>>>>
>>>> Now i wanted to use DateTime object, but it seems it needs a string
>>>> as
>>>> reference, so i can't use a timestamp to re-generate that time.
>>>>
>>>> How can i fix this?
>>> I think
>>> http://hu2.php.net/manual/hu/function.strftime.php
>>> should be okay
>>>
>>> greets
>>> Zoltán Németh
>>>
>>>> Thx in advance.
>>>>
>> I hoped to avoid this.
>> I Now i need an extra function call to get the right time.
>> Hoped there was a way to give just the timestamp directly.
>>
>> --
>> PHP General Mailing List (http://www.php.net/)
>> To unsubscribe, visit: http://www.php.net/unsub.php
>>
>>
>
>

I use this for displaying and saving the right timestamp when a user
enters a date/time.
I Save it all as our global timestamp, so that shouldn't be a problem.