[php-src] Issue #8308: The return value of mb_list_encodings() doesn't contain 'SJIS-win'

Issue: https://github.com/php/php-src/issues/8308 Comment Author: alexdowad Just did a first draft of the code to reintroduce SJIS-win (it's just a few lines). Still need to adjust the unit tests. I also still need to re-examine the mappings for CP932, confirm if there have been any changes from legacy mbstring, and if so, raise each one for discussion here. I think it would be helpful if we can include some explanation of why users might choose to use CP932 or SJIS-win in the code comments; this would help future maintainers and developers to understand why the code is the way it is. @sj-i stated above: > SJIS-win and CP932 are both > used in Japan. Some articles recommend one, others recommend another. I've not yet read through the references provided by @zonuexe on #8281, so maybe this is already covered there, but can you explain any reasons why one might recommend the use of CP932, or conversely, might recommend SJIS-win?