(PHP 4, PHP 5)
imap_close — Close an IMAP stream
Closes the imap stream.
imap_open()이 반환한 IMAP 스트림입니다.
If set to CL_EXPUNGE, the function will silently expunge the mailbox before closing, removing all messages marked for deletion. You can achieve the same thing by using imap_expunge()
성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.