PHP. Руководство по PHP. 2005
imap_clearflag_full
imap_clearflag_full
Description
bool imap_clearflag_full (resource stream, string sequence, string flag [, string options])This function causes a store to delete the specified flag to the flags set for the messages in the specified sequence. The flags which you can unset are "\\Seen", "\\Answered", "\\Flagged", "\\Deleted", and "\\Draft" (as defined by RFC2060). Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки..
options are a bit mask and may contain the single option:
ST_UID - The sequence argument contains UIDs instead of sequence numbers
See also: imap_setflag_full().
imap_check
imap_close