(PHP 4, PHP 5, PHP 7, PHP 8)
imap_mail_copy — Copy specified messages to a mailbox
$imap,$message_nums,$mailbox,$flags = 0
   Copies mail messages specified by message_nums
   to specified mailbox.
  
imapIMAP\Connection 实例。
message_nums
       message_nums is a range not just message
       numbers (as described in » RFC2060).
      
mailboxThe mailbox name, see imap_open() for more information
Passing untrusted data to this parameter is insecure, unless imap.enable_insecure_rsh is disabled.
flags
       flags is a bitmask of one or more of
       
CP_UID - the sequence numbers contain UIDS
         
        CP_MOVE - Delete the messages from
          the current mailbox after copying. If this flag is set, the function
          behaves identically to imap_mail_move().
         
        
   成功时返回 true, 或者在失败时返回 false。
  
| 版本 | 说明 | 
|---|---|
| 8.1.0 | 现在 imap参数接受 IMAP\Connection
  实例,之前接受 资源(resource)。 |