imap_search() Yahoo

[shdinx]

Hi,

Thank you for this imap class. So far it has been very useful.
However, I have found an issue while parsing mails from Yahoo which took me a while to understand.

The imap_search() charset you are using by default is "utf-8" but for some reason the yahoo imap stream expect the charset to be uppercase "UTF-8". When using imap_seach() on a yahoo stream with lowercase utf-8 the result is false while with uppercase we get the expected IDs back.

Here is a quick sample:

$sevrer = "{imap.mail.yahoo.com:993/imap/ssl}INBOX";
$username = "";
$password = "";

// open connection
$imapStream = imap_open($sevrer, $username, $password);

// check connection
if (! $imapStream) {
throw new Exception('Connection error: ' . imap_last_error());
}

$criteria = "SINCE 01-Jan-2015";
var_dump(imap_search($imapStream, $criteria, SE_UID, 'utf-8')); // false
var_dump(imap_search($imapStream, $criteria, SE_UID, 'UTF-8')); // array of message numbers or UIDs

// close connection
if ($imapStream && is_resource($imapStream)) {
imap_close($imapStream, CL_EXPUNGE);
}

Cheers

[barbushin]

Hey. Thanks for that notice!

So may be we should always uppercase charset name? The question is if UTF-8 will works with other mail servers, like utf-8. Could you please check this?

[shdinx]

Tested it for:
hotmail, yahoo and gmail

I can not find a RFC document describing the use of charset for imap.
However, in every RFC document describing the imap protocol and the charset, I can see that they use the uppercase version.

For example: https://tools.ietf.org/html/rfc5738

Hope this helps.

[barbushin]

This helps a lot. Thank you, @shdinx!

[akhzarjaved]

Any solution to this?