M1 Chip MacOS php intl extension error

xampp in mac do this:
if you php version is 8+
1, open mac terminal 

Code:

sudo port install php80-intl

2,find file
go to 

Code:

/opt/local/lib/php/extensions/ your some folder

an find like intl.so 
3,copy intl.so to
/Applications/xampp/xamppfiles/lib/php/extensions/ your some folder / intl.so