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Doc Bug #70115 DATE_ISO8601 const not compatible with ISO standard
Submitted: 2015-07-22 14:11 UTC Modified: 2015-08-27 14:14 UTC
From: adambro at o2 dot pl Assigned: cmb (profile)
Status: Closed Package: Documentation problem
PHP Version: Irrelevant OS: N/A
Private report: No CVE-ID: None
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 [2015-07-22 14:11 UTC] adambro at o2 dot pl 
Description:
------------
---
From manual page: http://www.php.net/class.datetime
---

The constant DATE_ISO8601 is not compatible with ISO standard. The standard says in extended format (with colons) everything has to be in that notation, so having timezone represented as "+0000" (O in const string) is invalid. It should be "+00:00" (P in const).

There's a #55272 bug, but it was closed due to wrong premise that basic format can be mixed with extended one.

It is being explained in the comment already:
http://php.net/manual/en/class.datetime.php#116085

Using date("c") yields correct format, also DATE_RFC3339 seem to be compatible.

I've stumbled upon the bug while exchanging data with Java system.

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 [2015-07-22 14:13 UTC] adambro at o2 dot pl 
Expected result:

Add a warning in documentation that DATE_ISO8601 is not compatible with that standard, hence other languages (Java, JS).
 [2015-07-22 14:52 UTC] cmb@php.net 
Not sure, if that is a *documentation* problem. The format "c" is
properly described as "ISO 8601 date", but DATE_ISO8601 works
slightly different. That is inconsistent at best.
 [2015-07-23 08:19 UTC] derick@php.net 
But we can't change the constant, so it needs to be documented.
 [2015-08-27 14:13 UTC] cmb@php.net 
Automatic comment from SVN on behalf of cmb
Revision: http://svn.php.net/viewvc/?view=revision&revision=337646
Log: DATE_ISO8601 is not compatible with ISO-8601 (fixes #70115)
 [2015-08-27 14:14 UTC] cmb@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: cmb
 [2015-08-27 14:14 UTC] cmb@php.net 
This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.

Thank you for the report, and for helping us make our documentation better.
 
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