(PHP 4, PHP 5, PHP 7)
imap_deletemailbox — Delete a mailbox
$imap_stream
   , string $mailbox
   ) : bool
   Deletes the specified mailbox.
  
imap_stream由 imap_open() 返回的 IMAP 流。
mailboxThe mailbox name, see imap_open() for more information
Passing untrusted data to this parameter is insecure, unless imap.enable_insecure_rsh is disabled.
   成功时返回 TRUE, 或者在失败时返回 FALSE。
  
mbox