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Subject: Re: [PHP-DEV] DateTime improvement
From: lester@lsces.co.uk (Lester Caine)

>> I'm not really against that, but we do need to use the Date namespace -
>> >>so DateTimeImmutable. It might be trickier to do than it sounds
>> >>though...
>>
>>I've started hacking on this - with some luck I'm done before PHP 5.5
>>beta1.

Am I missing something here?
Isn't this just making the object content read only?
Haven't we been having a separate discussion on that?

On the whole I'm only using DateTime objects when I need to display the content 
in a different timezone, so the timezone needs to be changeable, but the base 
date is read only. Alternatively I'm building a calendar so need 'all the days 
for month x' as an array, and then use those dates to generate the database 
query. If it's a 'local' calendar then there will be a time offset incorporated 
as well.

In Firebird, the dates are stored as a numeric value, with the whole part the 
number of days, and the fraction the time of day. Two 32bit values. When doing 
comparisons there is no point converting to a DateTime object, one converts FROM 
the DateTime to parameter suitable for the database, and leave the database to 
do the filtering.

-- 
Lester Caine - G8HFL
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