This will scrape information from a Google+ page, if given a URL. The "followers" uses a class that doubtless will change; but you can hopefully see how it works.

extract_info_from_googleplus.php

<?

$url['url']='https://plus.google.com/107170242245169064947/posts';

if (isset($url['url'])) {

$d = new DOMDocument();
@$d->loadHTML(file_get_contents($url['url']));
$xpath = new DOMXPath($d);

$found['followers'] = $xpath->query('/html/body//span[@class="d-s o5a"]')->item(0)->textContent;
//This appears twice, and is the total followers for this property
list($found['followers'],$foo) = explode(" ",$found['followers']);

$found['name'] = $xpath->query("//*[@itemprop='name']")->item(0)->getAttribute('content');
$found['url'] = $xpath->query("//*[@itemprop='url']")->item(0)->getAttribute('content');
$found['image'] = 'https:'.$xpath->query("//*[@itemprop='image']")->item(0)->getAttribute('content');
$found['id'] = $xpath->query("//*[@itemprop='url']")->item(0)->getAttribute('content');
$found['id'] = substr($found['id'],strrpos($found['id'], "/")+1);

print_r($found);

} else { echo 'Nothing to do: aborting'; }

?>