Since Google changed their Google PageRank API to use a different query URL a lot are “lost” without their Google PageRank. The solution consist of a PHP GooglePageRankChecker class which queries the PageRank for a given site and returns the PageRank number.

“It turns out Pagerank is not dead after all. Google has simply updated the URL which is used to query it, which has caused various toolbars and websites to stop reporting the number.”