Auto-downloader for Linux Journal ebooks. I set my download location to a directory that gets sync'd to my mobile devices (Dropbox, Box, SkyDrive, etc).

LinuxJournalDownloader.php

<?php
// Account number goes here
$account_num = 'LJ123456';
// Your ZIP code
$zip = '12345';
// Path to eBooks
$path = 'C:/eBooks/Linux Journal';
// eBook download format: pdf, epub, mobi
$format = 'pdf';

$short_account_num = preg_replace('/^LJ/', '', $account_num);
$dlpage = "https://secure2.linuxjournal.com/pdf/dljdownload.php?ucLJFooter_accountnumber=$short_account_num";

$dlpage_content = file_get_contents($dlpage);
if (!$dlpage_content) {
    die("Unable to download Linux Journal issue list");
}
preg_match_all('#http://download\.linuxjournal\.com/pdf/get-doc\.php\?code=\w*&tcode='.$format.'-(\d*)-\d*#', $dlpage_content, $matches, PREG_SET_ORDER);
 
foreach ($matches as $match) {
    $url = $match[0]."&action=spit";
    $issue = $match[1];
    $file = "$path/lj-$issue.$format";
    if (!file_exists($file)) {
        echo "Downloading issue $issue...";
        file_put_contents($file, file_get_contents($url));
        $size = filesize($file);
        echo "Done ($size bytes)\n";
    }
}
 
echo "Done.\n";