(PHP 3 >= 3.0.3, PHP 4, PHP 5)
imap_uid --
This function returns the UID for the given message sequence
number
Description
int
imap_uid ( resource imap_stream, int msgno )
This function returns the UID for the given message sequence
number. An UID is an unique identifier that will not change over
time while a message sequence number may change whenever the
content of the mailbox changes. This function is the inverse of
imap_msgno().
注:
This is not supported by POP3 mailboxes.
See also: imap_msgno().
imap_timeout