//$alexa = new Alexa(); //print_r($alexa->stats('www.goalercn.com')); //print_r($alexa->stats('www.goalercn.com',1)); //print_r($alexa->stats('www.goalercn.com',1,1)); //print_r($alexa->threeMothAlexa('http://www.goalercn.com/')); 
PHP 代码：【复制】 
class Alexa 
{
	private $badclasses;
	private $site;
	private $cache;
	 
	function alexa() {
		preg_match_all('#\.([a-z0-9]+) \{#i',file_get_contents('http://client.alexa.com/common/css/scramble.css'),$this->badclasses); 
	}

	private function descramble ($matches) {
		return in_array($matches[1],$this->badclasses[1])?'':$matches[2];
	}

	public function stats ($site, $section = 4, $item = 5) {
		if (!is_array($this->cache[$site])) {
			$items = array();
			$html = preg_replace('# #','',preg_replace('#(?:<|<)!--.+?--(?:>|>)#','',file_get_contents('http://www.alexa.com/data/details/traffic_details/' . $site)));
			preg_match_all('#.+?#',$html,$tables);
			 
			for ($i = 0,$len = count($tables[0]); $i < $len; $i++) {
				preg_match_all('#(.+?)#',$tables[0][$i],$info);
				for ($i2 = 0,$len2 = count($info[1]); $i2 < $len2; $i2++) {
					$info[1][$i2] = preg_replace('##','$1 ',$info[1][$i2]);
					$items[$i][] = preg_replace_callback('#(.+?)#im',array(get_class($this), 'descramble'),$info[1][$i2]);
				}
			}
			$this->cache[$site] = $items;
		}
		if ($section == 4 && $item == 5) {
			return $this->cache[$site];
		}
		elseif ($item == 5) {
			return $this->cache[$site][$section];
		} 
		else {
			return $this->cache[$site][$section][$item];
		}
	}

	public function threeMothAlexa($site) {
		$urlinfo = parse_url($site);
		$site = $urlinfo["host"];
		$score = $this->stats($site,1);
		return $score[2];
	}
}