It turns out, it's an undocumented feature on their API, so here is everything I know about recovering your bundle data, including the script I used to rescue my own data. Continue reading
To get around this, I used their API to make a page which lists my bit.ly bundles, and creates shortlinks for each of them (once you've created a shortlink for a given URL once, bit.ly just re-uses the same ones the next time you ask to shorten the same URL, so this is less silly than it sounds).
In case the code is helpful, I thought I'd share. Continue reading
Here's a simple example, using PHP's curl extension, of using the bit.ly API to get a short URL, using PHP (you need an API key, but if you're a registered bit.ly user, you can log in and then find yours at http://bitly.com/a/your_api_key).
$ch = curl_init('http://api.bitly.com/v3/shorten?login=username&apiKey=R_secret&longUrl=http%3A%2F%2Flornajane.net'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch); print_r(json_decode($result));