Doc #79858 [Com]: IntlDateTimeFormatter spec does not match PHP

Edit report at https://bugs.php.net/bug.php?id=79858&edit=1 ID: 79858 Comment by: a at b dot c dot de Reported by: m dot smeets at performation dot com Summary: IntlDateTimeFormatter spec does not match PHP Status: Open Type: Documentation Problem Package: Date/time related Operating System: Linux PHP Version: 7.3.20 Block user comment: N Private report: N New Comment: The documentation for the IntlDateFormatter constructor does say: " pattern Optional pattern to use when formatting or parsing. Possible patterns are documented at » http://userguide.icu-project.org/formatparse/datetime. " Previous Comments: ------------------------------------------------------------------------ [2020-07-14 13:46:58] m dot smeets at performation dot com Description: ------------ --- From manual page: https://php.net/class.intldateformatter --- According to https://www.php.net/manual/en/function.date.php 'Y' is "A full numeric representation of a year, 4 digits" and 'o' is "ISO-8601 week-numbering year. This has the same value as Y, except that if the ISO week number (W) belongs to the previous or next year, that year is used instead. (added in PHP 5.1.0)" But in IntlDateFormatter "Y" is "Week of Year", shown in http://userguide.icu-project.org/formatparse/datetime. This means that the following format will be interpreted differently Test script: --------------- date = 2018-12-31 format = d-m-Y PHP date_format "31-12-2019" IntlDate format "31-12-2020" Expected result: ---------------- Expected result is the same, but I expect a warning on the PHP IntlDateFormatter page: https://www.php.net/manual/en/class.intldateformatter.php ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79858&edit=1