<"host"]))
      return $domain["host"];
    else
      return $domain["path"];
  }
  /**
   *
   * get the metas from a url and the language of the site
   * @param string $url
   * @return array
   */
  public static function meta_info($url)
  {
    //doesn't work at mediatemple
    /*$html = new DOMDocument();
    if(!$html->loadHtmlFile($url))
      return FALSE;*/
    if (!$html_content = self::get_html($url))
        return FALSE;
    $html = new DOMDocument();
    $html->loadHtml($html_content);
       
    $xpath = new DOMXPath( $html );
    $url_info = array();
    $langs = $xpath->query( '//html' );
    foreach ($langs as $lang)
    {
      $url_info['language'] = $lang->getAttribute('lang');
    }
    $metas = $xpath->query( '//meta' );
    foreach ($metas as $meta)
    {
      if ($meta->getAttribute('name'))
      {
        $url_info[$meta->getAttribute('name')] = $meta->getAttribute('content');
      }
    }
    return $url_info;
  }
  /**
   *
   * Alexa rank
   * @param string $url
   * @return integer
   */
  public static function alexa_rank($url)
  {
    $domain   = self::domain_name($url);
    $request   = "http://data.alexa.com/data" . $domain;
    $data     = self::get_html($request);
    preg_match('/<POPULARITY URL="(.*" TEXT="([\d]+)"\/>/si', $data, $p);
    return ($l[2]) "http://data.alexa.com/data" . $domain;
    $data     = self::get_html($request);
    preg_match('/<LINKSIN NUM="([\d]+)"\/>/si', $data, $l);
    return ($l[1]) "http://www.google.com/search" . urlencode("link:" . $url) . "&amp;hl=en";
    $data     = self::get_html($request);
    preg_match('/<div id=resultStats>(About )"http://api.mywot.com/0.4/public_query2" . $domain;
    $data   = self::get_html($request);
    preg_match_all('/<application name="(\d+)" r="(\d+)" c="(\d+)"\/>/si', $data, $regs);
    $trustworthiness = ($regs[2][0]) "http://reports.internic.net/cgi/whois" . $domain . "&type=domain";
    $data   = self::get_html($request);
    preg_match('/Creation Date: ([a-z0-9-]+)/si', $data, $p);
    return (!$p[1])"http://urls.api.twitter.com/1/urls/count.json";
    $fileData = file_get_contents(sprintf($twitterEndpoint, $url));
    $json = json_decode($fileData, true);
    unset($fileData);        // free memory
    return (is_numeric($json['count']))"http://toolbarqueries.google.com/tbr".self::CheckHash(self::HashURL($url)). "&features=Rank&q=info:".$url."&num=100&filter=0";
      $data = self::get_html($query);//die(print_r($data));
    $pos  = strpos($data, "Rank_");
    if($pos === false)
    {
      return NULL;
    }
    else
    {
      $pagerank = substr($data, $pos + 9);
      return $pagerank;
    }
  }
  // functions for google pagerank
  /**
   * To calculate PR functions
   */
  public static function StrToNum($Str, $Check, $Magic)
  {
    $Int32Unit = 4294967296; // 2^32
    $length = strlen($Str);
    for ($i = 0; $i < $length; $i++) {
      $Check *= $Magic;
      //If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31),
      // the result of converting to integer is undefined
      // refer to http://www.php.net/manual/en/language.types.integer.php
      if ($Check >= $Int32Unit) {
        $Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit));
        //if the check less than -2^31
        $Check = ($Check < -2147483648) "htmlcode">

<?php
include 'seoreport.php';
ini_set('max_execution_time', 180);
  $url = (isset($_GET['url']))?$_GET['url']:'http://phpclasses.org';
  $meta_tags = seoreport::meta_info($url);
  //die(var_dump($meta_tags));
  //first check if site online
  if ($meta_tags!==FALSE)
  {
    $stats = array();
    $stats['meta'] = $meta_tags;
    $stats['alexa']['rank'] = seoreport::alexa_rank($url);
    $stats['alexa']['links'] = seoreport::alexa_links($url);
    $stats['domain']['WOT_rating'] = seoreport::WOT_rating($url);  
    $stats['domain']['domain_age'] = seoreport::domain_age($url);  
    $stats['social']['twitter'] = seoreport::tweet_count($url);  
    $stats['social']['facebook'] = seoreport::facebook_shares($url);
    $stats['google']['page_rank'] = seoreport::page_rank($url);
    $stats['google']['page_speed'] = seoreport::page_speed($url);
    $stats['google']['pages'] = seoreport::google_pages($url);
    $stats['google']['links'] = seoreport::google_links($url);
    var_dump($stats);
  }
  else 'Site not online. '.$url;


希望本文所述对大家的php程序设计有所帮助。