API WOOCOMERCE (INSERT PRODUCT) - Whitespace on attributes (options)

I have the following problem.


I'm uploading a product via api rest v3.


I have the problem loading attribute options


If I use a space option, it separates the terms.


If Gravina Di Catania loads, Gravina takes me then Di and then Catania


If I do the test on postman everything is ok


If I make the call via Php no.


how do i fix it?


I put double quotes in the string.


I used addslashes


i tried doing JSON ENCODE of options array