Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Derick Rethans 
On Mon, 9 Sep 2013, Lester Caine wrote:

> Martin Keckeis wrote:
> > 
> > just wanted to mention, what the list of supported Timezones has 
> > changedin 5.4.
> > 
> > It's already mentioned here, that all "special" timezones, expect of 
> > UTC are deprecated: 
> > http://www.php.net/manual/en/timezones.others.php
> > 
> > But couldn't found that in the upgrade guide...so i used CET 
> > somewhere in my code and didn't found the error soon
> > 
> > A short note in the upgrade guid would be great!
> 
> This is not so much an 'upgrade' note, but rather a update to the 
> timezone library in general. The tz database is being 'rationalised' 
> at the moment, and the base list of zone names simplified, with many 
> of these only being retained for 'backwards' compatibility. Derick 
> will probably add a comment, but we can expect a few more changes over 
> the next couple of updates to the tz data.

We will see what happens there. As far as I know most of those changes 
have been reverted in the TZDB anyway.

cheers,
Derick

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Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Lester Caine 

Derick Rethans wrote:

This is not so much an 'upgrade' note, but rather a update to the
>timezone library in general. The tz database is being 'rationalised'
>at the moment, and the base list of zone names simplified, with many
>of these only being retained for 'backwards' compatibility. Derick
>will probably add a comment, but we can expect a few more changes over
>the next couple of updates to the tz data.

We will see what happens there. As far as I know most of those changes
have been reverted in the TZDB anyway.


The discussion on 'extended' timezones is still going on ;)
Daylight saving did not start in 1970, but the recent proposed change in tz was 
to ignore them to simplify the list of timezones. That has now been reverted, 
but how to handle the additional information has not yet been agreed. The tz 
dataabse will probably not return pre 1970 date, you will need a different build 
of tz to get that. Which is something I think is simply wrong! We have 
increasingly accurate pre 1970 data but that requires additional timezone names 
which the basic tz database will not support.


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Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Derick Rethans 
On Mon, 9 Sep 2013, Martin Keckeis wrote:

> If you use a deprecated Timezone somewhere and don't know it, it's hard to
> track down...(no exception)
> I only found it "randomly" today, that i've used it there and all time data
> in the database are not correct...
> 
> If you use something like:
> \DateTime::createFromFormat('Y-m-d H:i:s', '2013-09-09 14:49:00', new
> DateTimeZone('CET'))
> 
> Just the default timezone from ini will be used and therefor the dateTime
> value is wrong if you save it or display it somewhere...

That is not true. CET is actually mapped to Europe/Berlin. This mapping 
was made specifically for BC reasons.

derick@whisky:~ $ php

class DateTime#1 (3) {
  public $date =>
  string(19) "2013-09-09 14:49:00"
  public $timezone_type =>
  int(3)
  public $timezone =>
  string(13) "Europe/London"
}

derick@whisky:~ $ php

class DateTime#2 (3) {
  public $date =>
  string(19) "2013-09-09 14:49:00"
  public $timezone_type =>
  int(3)
  public $timezone =>
  string(13) "Europe/Berlin"
}


cheers,
Derick

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Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Derick Rethans 
On Mon, 9 Sep 2013, Derick Rethans wrote:

> On Mon, 9 Sep 2013, Martin Keckeis wrote:
> 
> > If you use a deprecated Timezone somewhere and don't know it, it's hard to
> > track down...(no exception)
> > I only found it "randomly" today, that i've used it there and all time data
> > in the database are not correct...
> > 
> > If you use something like:
> > \DateTime::createFromFormat('Y-m-d H:i:s', '2013-09-09 14:49:00', new
> > DateTimeZone('CET'))
> > 
> > Just the default timezone from ini will be used and therefor the dateTime
> > value is wrong if you save it or display it somewhere...
> 
> That is not true. CET is actually mapped to Europe/Berlin. This mapping 
> was made specifically for BC reasons.

Or even in a smaller example:

derick@whisky:~ $ php -r '$a = new DateTimeZone("CET"); echo $a->getName(), 
"\n";'
Europe/Berlin

cheers,
Derick

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Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Derick Rethans 
On Mon, 9 Sep 2013, Martin Keckeis wrote:

> Hello together,
> 
> just wanted to mention, what the list of supported Timezones has changedin
> 5.4.
> 
> It's already mentioned here, that all "special" timezones, expect of UTC
> are deprecated:
> http://www.php.net/manual/en/timezones.others.php
> 
> But couldn't found that in the upgrade guide...so i used CET somewhere in
> my code and didn't found the error soon
> 
> A short note in the upgrade guid would be great!

But nothing changed at all. CET has always been in "others" and should 
be avoided just like the documentation says.

cheers,
Derick

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Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Lester Caine 

Martin Keckeis wrote:

Hi lester,

2013/9/9 Lester Caine mailto:les...@lsces.co.uk>>

Martin Keckeis wrote:

Hello together,

just wanted to mention, what the list of supported Timezones has 
changedin
5.4.

It's already mentioned here, that all "special" timezones, expect of UTC
are deprecated:
http://www.php.net/manual/en/__timezones.others.php


But couldn't found that in the upgrade guide...so i used CET somewhere 
in
my code and didn't found the error soon

A short note in the upgrade guid would be great!


This is not so much an 'upgrade' note, but rather a update to the timezone
library in general. The tz database is being 'rationalised' at the moment,
and the base list of zone names simplified, with many of these only being
retained for 'backwards' compatibility. Derick will probably add a comment,
but we can expect a few more changes over the next couple of updates to the
tz data.


Okay no problem, just wanted to mention it.

If you use a deprecated Timezone somewhere and don't know it, it's hard to track
down...(no exception)
I only found it "randomly" today, that i've used it there and all time data in
the database are not correct...

If you use something like:
\DateTime::createFromFormat('Y-m-d H:i:s', '2013-09-09 14:49:00', new
DateTimeZone('CET'))

Just the default timezone from ini will be used and therefor the dateTime value
is wrong if you save it or display it somewhere...


That sounds like a different problem. I've no time to play at the moment, but 
does an 'non-existent' timezone give you an error? Or is it just the 'retired' 
timezone names that are a problem?


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Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Martin Keckeis 
Hi lester,

2013/9/9 Lester Caine 

> Martin Keckeis wrote:
>
>> Hello together,
>>
>> just wanted to mention, what the list of supported Timezones has changedin
>> 5.4.
>>
>> It's already mentioned here, that all "special" timezones, expect of UTC
>> are deprecated:
>> http://www.php.net/manual/en/**timezones.others.php
>>
>> But couldn't found that in the upgrade guide...so i used CET somewhere in
>> my code and didn't found the error soon
>>
>> A short note in the upgrade guid would be great!
>>
>
> This is not so much an 'upgrade' note, but rather a update to the timezone
> library in general. The tz database is being 'rationalised' at the moment,
> and the base list of zone names simplified, with many of these only being
> retained for 'backwards' compatibility. Derick will probably add a comment,
> but we can expect a few more changes over the next couple of updates to the
> tz data.
>
>
Okay no problem, just wanted to mention it.

If you use a deprecated Timezone somewhere and don't know it, it's hard to
track down...(no exception)
I only found it "randomly" today, that i've used it there and all time data
in the database are not correct...

If you use something like:
\DateTime::createFromFormat('Y-m-d H:i:s', '2013-09-09 14:49:00', new
DateTimeZone('CET'))

Just the default timezone from ini will be used and therefor the dateTime
value is wrong if you save it or display it somewhere...

Re: [PHP-DEV] 5.4 DateTimeZone: Supported timezones have changed

2013-09-09 Thread Lester Caine 

Martin Keckeis wrote:

Hello together,

just wanted to mention, what the list of supported Timezones has changedin
5.4.

It's already mentioned here, that all "special" timezones, expect of UTC
are deprecated:
http://www.php.net/manual/en/timezones.others.php

But couldn't found that in the upgrade guide...so i used CET somewhere in
my code and didn't found the error soon

A short note in the upgrade guid would be great!


This is not so much an 'upgrade' note, but rather a update to the timezone 
library in general. The tz database is being 'rationalised' at the moment, and 
the base list of zone names simplified, with many of these only being retained 
for 'backwards' compatibility. Derick will probably add a comment, but we can 
expect a few more changes over the next couple of updates to the tz data.


--
Lester Caine - G8HFL
-
Contact - http://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - http://lsces.co.uk
EnquirySolve - http://enquirysolve.com/
Model Engineers Digital Workshop - http://medw.co.uk
Rainbow Digital Media - http://rainbowdigitalmedia.co.uk

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