[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 _(Commenting further on the sample code which @sj-i shared:)_ Hmm. This actually seems to be closely related to the same issue which you have commented on in #8281. (Whether SJIS 0x7E should be interpreted as U+007E or U+203E...) It does appear that the legacy behavior of CP932 in mbstring was a bit illogical, in that when converting Unicode → CP932, it would convert U+007E to 0x7E (implying that 0x7E is being used to represent a tilde, not an overbar), but then when converting CP932 → Unicode, it would convert U+203E to 0x7E (implying that 0x7E represents an overbar, not a tilde). Do you have any idea why this is the case? > SJIS-win and CP932 are both used in Japan. Some articles recommend one, others recommend > another. It is optimistic to say that keeping only one behavior is enough. Both could be depended on > by a fair number of users. If these encodings are different, and both are used by even a small number of users, then we definitely need to support both of them. That is not under question. Currently I am still trying to understand clearly what the difference is.