https://en.wiktionary.org/wiki/NFKC
NFKC - Wiktionary, the free dictionary
the freewiktionarydictionary
https://www.php.net/manual/it/intlchar.getfc-nfkc-closure.php
PHP: IntlChar::getFC_NFKC_Closure - Manual
Get the FC_NFKC_Closure property for a code point
phpclosuremanual
https://community.box.com/api-6/api-bug-report-upload-preflight-check-options-applies-one-directional-nfkc-normalization-causing-asymmetric-409-conflicts-on-files-and-folders-34759
API Bug report: Upload Preflight check (OPTIONS) applies one-directional NFKC normalization causing...
SummaryThe preflight check endpoint applies NFKC normalization to the incoming filename/folder name before checking for conflicts, but does not apply th...