How to detect charset encoding with php icu extensions?

Question

ICU has functions to detect charset encodings, here and PHP also has ICU extension, here but how to use php icu extension to do the charset detection? I can not find anything related to this part on php's doc

Answer 1

这可能是对PHP扩展的新功能要求 ，或者是您自己进行贡献的机会。