Move folder in Mila function using PHP

[vssp]

Hai friend

I am using thirt party open soucre in php to mail finction.
I want to add additional functionality to move mail to folder.
I want add new menu add new folder and select the mail and move to the new folder . seelcted mails are move to that folder..

Please send me any suggestion How to move the mail to new folder.
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Thanks
Vssp