Sample code for 30+ languages & platforms
PHP Extension

List Email UIDs

List the UIDs of each email in a mailbox.

Chilkat PHP Extension Downloads

PHP Extension
<?php

include("chilkat.php");

$success = false;

$imap = new CkImap();

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Connect to an IMAP server.
// Use TLS
$imap->put_Ssl(true);
$imap->put_Port(993);
$success = $imap->Connect('MY-IMAP-DOMAIN');
if ($success == false) {
    print $imap->lastErrorText() . "\n";
    exit;
}

// Login
$success = $imap->Login('MY-IMAP-LOGIN','MY-IMAP-PASSWORD');
if ($success == false) {
    print $imap->lastErrorText() . "\n";
    exit;
}

// Select an IMAP mailbox
$success = $imap->SelectMailbox('Inbox');
if ($success == false) {
    print $imap->lastErrorText() . "\n";
    exit;
}

// Get the message IDs of all the emails in the mailbox
// We can choose to fetch UIDs or sequence numbers.
$fetchUids = true;
$messageSet = new CkMessageSet();
$success = $imap->QueryMbx('ALL',$fetchUids,$messageSet);
if ($success == false) {
    print $imap->lastErrorText() . "\n";
    exit;
}

$i = 0;
$n = $messageSet->get_Count();
while ($i < $n) {
    print $messageSet->GetId($i) . "\n";
    $i = $i + 1;
}

// Disconnect from the IMAP server.
$success = $imap->Disconnect();

?>