(PHP 4, PHP 5)
imap_clearflag_full — Clears flags on messages
This function causes a store to delete the specified flag to the flags set for the messages in the specified sequence .
An IMAP stream returned by imap_open().
A sequence of message numbers. You can enumerate desired messages with the X,Y syntax, or retrieve all messages within an interval with the X:Y syntax
The flags which you can unset are "\\Seen", "\\Answered", "\\Flagged", "\\Deleted", and "\\Draft" (as defined by » RFC2060)
options are a bit mask and may contain the single option:
如果成功则返回 TRUE,失败则返回 FALSE。