(PHP Extension) Process Large POP3 Mailbox

Demonstrates how to read email from a mailbox that may contain a large number of emails.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

$mailman = new CkMailMan();

$mailman->put_MailHost('pop.example.com');

$mailman->put_PopUsername('myLogin');
$mailman->put_PopPassword('myPassword');

$mailman->put_MailPort(995);
$mailman->put_PopSsl(true);

// Get the list of UIDLs for all emails in the mailbox.
// sa is a CkStringArray
$sa = $mailman->GetUidls();
if ($mailman->get_LastMethodSuccess() == false) {
    print $mailman->lastErrorText() . "\n";
    exit;
}

$numEmails = $sa->get_Count();
if ($numEmails == 0) {
    print 'Mailbox is empty' . "\n";
    exit;
}

$chunkSize = 6;

// Download the emails in chunks of 6 emails each.
$chunkBeginIdx = 0;
$chunkEndIdx = $chunkSize - 1;
if ($chunkEndIdx >= $numEmails) {
    $chunkEndIdx = $numEmails - 1;
}

$saChunk = new CkStringArray();
while (($chunkBeginIdx < $numEmails)) {

    print $chunkBeginIdx . ' to ' . $chunkEndIdx . "\n";

    // Build a chunk of UIDLs.
    $saChunk->Clear();
    for ($i = $chunkBeginIdx; $i <= $chunkEndIdx; $i++) {
        $saChunk->Append($sa->getString($i));
    }

    // Log the UIDLs in this chunk...
    $chunkStr = $saChunk->saveToText();
    print $chunkStr . "\n";

    // Download this chunk of email from the POP3 server.
    // bundle is a CkEmailBundle
    $bundle = $mailman->FetchMultiple($saChunk);
    if ($mailman->get_LastMethodSuccess() == false) {
        print $mailman->lastErrorText() . "\n";
        exit;
    }

    print 'Downloaded ' . $bundle->get_MessageCount() . ' emails.' . "\n";
    print '----' . "\n";

    // Process the bundle...
    // (your application's processing code goes here...)

    // Get the next chunk...
    $chunkBeginIdx = $chunkBeginIdx + $chunkSize;
    $chunkEndIdx = $chunkEndIdx + $chunkSize;
    if ($chunkEndIdx >= $numEmails) {
        $chunkEndIdx = $numEmails - 1;
    }

}


?>