Google "Last Cached" Date Script

Hi,

I am trying to find a way to get the last cached date from google in a simple script.

Does anyone know of a script that does this? I know that there has got to be something out there because I have seen plugins that fetch this date, such as SEO firefox extensions.

Thanks for any help you may be able to give!!

 

I wrote this quick. It requires cURL to be installed and enabled.

function fetch_google_last_cache($url)
{
	$ch = curl_init("http://www.google.com/search?q=info:{$url}");
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

	if (preg_match('/http:\/\/[\d]{1,3}\.[\d]{1,3}\.[\d]{1,3}\.[\d]{1,3}\/search\?q=cache[^"]+/', curl_exec($ch), $cache_url))
	{
		curl_setopt($ch, CURLOPT_URL, html_entity_decode($cache_url[0]));
		
		if (preg_match('/as retrieved on ([^<]+)/', curl_exec($ch), $date))
		{
			return trim($date[1]);
		}
	}
	
	return false;
}

PHP:

Usage example.

$date = fetch_google_last_cache('http://forums.digitalpoint.com');

if ($date === false)
{
     echo 'Your site does not seem to be cached by Google.';
}
else
{
     echo 'This site was last cached on: '. $date;
}

PHP: