[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: sj-i https://gist.github.com/sj-i/6bacf1bef255c096b3cbb78bfc29aa28 I have experimented with this already. So the case about U+00A5 is justified by the implementation of Windows, via is 'best-fit' mapping. References: https://web.archive.org/web/20100212163537/http://blogs.msdn.com/michkap/archive/2004/12/14/284838.aspx#332622 > Now through the masgic of "best fit" mappings (which I will cover another day), > U+2089 also maps to 0x5c on cp 932. Its a one-way mapping, obviously. But its there. https://web.archive.org/web/20100212163537/http://blogs.msdn.com/michkap/archive/2004/12/14/284838.aspx#332622 > Look at http://microsoft.com/globaldev/reference/dbcs/932.htm > which has the offical mapping for cp932. It only has the 0x4c to U+005c mapping, as the other (best > fit) mapping is not documented; none of the best fit mappings are. https://web.archive.org/web/20100130054656/http://blogs.msdn.com:80/michkap/archive/2005/09/17/469941.aspx > both U+00a5 and U+20a9 have one-way 'best fit' mappings to 0x5c on their respective > code pages.