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Request #45483 Add an era designater to DateTime methods when formatting or parsing dates
Submitted: 2008-07-11 10:18 UTC Modified: 2017-10-24 07:52 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:0 of 1 (0.0%)
From: tj at systisoft dot com Assigned:
Status: Open Package: Date/time related
PHP Version: 5.3CVS-2008-07-11 (CVS) OS: All
Private report: No CVE-ID: None
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 [2008-07-11 10:18 UTC] tj at systisoft dot com
Description:
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It is currently not possible to specify an era designator in a format when parsing or formatting dates with DateTime::createFromFormat or DateTime::format.

An era designater would be BC or AD as in 1/1/0200 BC or 1/1/2004 AD.

I don't know which format char would be good since 'G' which is used in some other format patterns as era designator seems to be already taken.

Reproduce code:
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Expected result:
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Actual result:
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 [2008-07-15 11:47 UTC] tj at systisoft dot com
There should also be a possibility to format a year without the sign, because if you format with 'Y' you will get something like:

-2000 BC

This can either be done by an new format char for unsigned year or that the 'Y' format is omitting the sign when a format char for the era designator is present.
 [2008-07-17 08:50 UTC] tj at systisoft dot com
On further thinking there should be a new format char for BC dates because Y formats the date with year 0 which is conforming with ISO8601.

But years in the proleptic Gregorian calendar do not have a year 0. The year 0 in ISO8601 is 1 BC in the proleptic Gregorian calendar.
 [2010-12-20 14:25 UTC] jani@php.net
-Package: Feature/Change Request +Package: Date/time related
 [2017-10-24 07:52 UTC] kalle@php.net
-Status: Assigned +Status: Open -Assigned To: derick +Assigned To:
 
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