I have PHP script that fetch messages from a mailbox. I use the imap_search function:
$emails = imap_search($mbox, 'UNSEEN');
Is there a way to limit the number of returned messages. Right now on huge mailboxes i get like 5000 messages. I want only the top 20 ordered by date.
Is there a way to do that?
Thanks.
The imap_search function has a CRITERIA attribute you can use to limit the messages in a number of ways:
ALL - return all messages matching the rest of the criteria
ANSWERED - match messages with the \ANSWERED flag set
BCC "string" - match messages with "string" in the Bcc: field
BEFORE "date" - match messages with Date: before "date"
BODY "string" - match messages with "string" in the body of the message
CC "string" - match messages with "string" in the Cc: field
DELETED - match deleted messages
FLAGGED - match messages with the \FLAGGED (sometimes referred to as Important or Urgent) flag set
FROM "string" - match messages with "string" in the From: field
KEYWORD "string" - match messages with "string" as a keyword
NEW - match new messages
OLD - match old messages
ON "date" - match messages with Date: matching "date"
RECENT - match messages with the \RECENT flag set
SEEN - match messages that have been read (the \SEEN flag is set)
SINCE "date" - match messages with Date: after "date"
SUBJECT "string" - match messages with "string" in the Subject:
TEXT "string" - match messages with text "string"
TO "string" - match messages with "string" in the To :
UNANSWERED - match messages that have not been answered
UNDELETED - match messages that are not deleted
UNFLAGGED - match messages that are not flagged
UNKEYWORD "string" - match messages that do not have the keyword "string"
UNSEEN - match messages which have not been read yet
imap_sort will allow you to both sort and filter at the same time
But still, it won't allow to limit to the 'top 20' right at the function call.
imap_search docs indicate this function:
Returns an array of message numbers or UIDs.
imap_fetch_overview docs indicate this function also returns:
message_id - Message-ID, uid - UID the message has in the mailbox
So we can use the imap_fetch_overview
and sort a certain number and order with the same return as the imap_search
function.
// get information about the current mailbox
$mboxCheck = imap_check($mbox);
// get the total amount of messages
$totalMessages = $mboxCheck->Nmsgs;
// select how many messages you want to see
$showMessages = 20;
// get those messages
$result = imap_fetch_overview($mbox($totalMessages-$showMessages+1).":".$totalMessages);
$n = 0;
$emails = array();
// loop through returned messages, collect message numbers in same format as output of imap_search
foreach ($result as $mail) {
$emails[$n] = $mail->msgno;
$n++;
}
if($emails) {
// put the newest emails on top
rsort($emails);
}
This is built with the concept from this answer
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