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Doc Bug #10850 imap_uid() does not produce an Unique ID Number from POP Servers
Submitted: 2001-05-14 09:38 UTC Modified: 2001-07-07 23:44 UTC
From: mattias dot segerdahl at commentor dot se Assigned:
Status: Closed Package: Documentation problem
PHP Version: 4.0.5 OS: linux
Private report: No CVE-ID: None
View Developer Edit
 [2001-05-14 09:38 UTC] mattias dot segerdahl at commentor dot se 
The following code should echo out the Unique ID's generated by UIDL on the IMAP/POP Server, but echo's out a sequencial number starting with 1 instead...

It should probably produce ID's like, 3afffb5300000001, 3afffb5300000002, etc. etc.


$mbox = imap_open ("{your.imap.host:143}", "username", "password");

$headers = imap_headers ($mbox);

if ($headers == true) {
    while (list ($key,$val) = each ($headers)) {
        echo imap_uid($mbox, $key);
    }
} else {
    echo "No messages in inbox";
}

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 [2001-05-14 13:19 UTC] vlad@php.net 
uhhh... no, it shouldn't. Those are not UID's.
 [2001-05-15 01:50 UTC] mattias dot segerdahl at commentor dot se 
As far as I can see,

The following text for the manual says that there will be unique numbers, not numbers that change over time, and the only unique numbers that are available for a message is the UIDL number from the server,

From the php manual:

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(). 

In other words, an UID is not a seq number that starts with 1, goes on with 2 3 4 5 6 etc. etc. and then starts all over when the mailbox is empty...
 [2001-05-15 13:02 UTC] sniper@php.net 
Reopened as documentation problem as this is at least the second time this has been reported as bug.

From Mark Crispin (author of c-client?)

"POP3 UIDs are not supported.
This is a permanent restriction."

--Jani
 [2001-05-15 13:02 UTC] sniper@php.net 
reclassify for real now..
 [2001-07-07 23:44 UTC] jimw@php.net 
added note to manual.
 
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