Yes. i have look at it. His $_FILES is same as me but his approach seems totally different. He include "Alfresco/Service/xxx" library which I didn't. I successfully login and create new folder without "Alfresco/Service/xxx". I'm trying to do this: File upload | Alfresco Documentation Which didn't suggest me to use "Alfresco/Service/xxx"
I don't know whats happening when all replies gone missing (Can I even delete replied message?). Anyway, I found the solution after being lead by your URL suggestion. I thank you for all your help Martin Ehe