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IMAP Functions
PHP Manual

imap_uid

(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 $msg_number )

This function returns the UID for the given message sequence number. An UID is a 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().

Parameters

imap_stream

An IMAP stream returned by imap_open().

msg_number

The message number.

Return Values

The UID of the given message.

Notes

Note: This function is not supported by POP3 mailboxes.

See Also

IMAP Functions
PHP Manual