Retrieve Google Cached HTML

cachedHTMLForURL.php

<?php

// http://hactheplanet.com/blog/11

function cachedHTMLForURL($url)
{
    // Request the cache from Google.
    $googleRequestURL = "http://webcache.googleusercontent.com/search?q=" . urlencode("cache:" . $url);
    $googleResponse = file_get_contents($googleRequestURL);
 
    // Return false if Google did not have it.
    if (preg_match("/^.*<title>cache:/", $googleResponse))
    return false;
 
    // Remove the first 3 lines of the response, which is inserted by Google.
    $importantHTML = preg_replace("/^(.*\n){3}/", "", $googleResponse);
 
    // Allow one line to be inserted, which corrects the base path of the site.
    preg_match_all("/<base href=\"[^\"]*\">/", $googleResponse, $matches);
    $base = $matches[0][0] . "\n";
 
    return $base . $importantHTML;
}

echo cachedHTMLForURL("http://news.google.com/");