这个seo类的功能包括：
- 检查指定的网站响应
- 获取从该网站主页的语言和其他meta标签数据的
- 获取网站的导入链接，从Alexa的流量排名
- 获取网站的导入链接，由谷歌索引的网页数量
- 获取网站的信任，从WOT排名。
- 获取，因为它是第一个注册的网站域名年龄
- 获取的Twitter网站页面的数量
- 获取的Facebook链接的网站页面
- 获取网站谷歌网页速度等级
- 获取网站的谷歌网页排名
<?php /** * * SEO report for different metrics * * @category SEO * @author Chema <chema@garridodiaz.com> * @copyright (c) 2009-2012 Open Classifieds Team * @license GPL v3 * Based on seo report script && PHP class SEOstats * */ class seoreport{ /** * * check if a url is online/alive * @param string $url * @return bool */ public static function is_alive($url) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADERFUNCTION, 'curlHeaderCallback'); curl_setopt($ch, CURLOPT_FAILONERROR, 1); curl_exec ($ch); $int_return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close ($ch); if ($int_return_code != 200 && $int_return_code != 302 && $int_return_code != 304) { return FALSE; } else return TRUE; } /** * HTTP GET request with curl. * * @param string $url String, containing the URL to curl. * @return string Returns string, containing the curl result. * */ protected static function get_html($url) { $ch = curl_init($url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,5); curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1); curl_setopt($ch,CURLOPT_MAXREDIRS,2); if(strtolower(parse_url($url, PHP_URL_SCHEME)) == 'https') { curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,1); curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,1); } $str = curl_exec($ch); curl_close($ch); return ($str)?$str:FALSE; } /** * * get the domain from any URL * @param string $url */ public static function domain_name($url) { $nowww = ereg_replace('www\.','',$url); $domain = parse_url($nowww); if(!empty($domain["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?cli=10&dat=s&url=" . $domain; $data = self::get_html($request); preg_match('/<POPULARITY URL="(.*?)" TEXT="([\d]+)"\/>/si', $data, $p); return ($l[2]) ? $l[2] : NULL; } /** * * Alexa inbounds link * @param string $url * @return integer */ public static function alexa_links($url) { $domain = self::domain_name($url); $request = "http://data.alexa.com/data?cli=10&dat=s&url=" . $domain; $data = self::get_html($request); preg_match('/<LINKSIN NUM="([\d]+)"\/>/si', $data, $l); return ($l[1]) ? $l[1] : NULL; } /** * Returns total amount of results for any Google search, * requesting the deprecated Websearch API. * * @param string $query String, containing the search query. * @return integer Returns a total count. */ public static function google_pages($url) { //$query = self::domain_name($url); $url = 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0&rsz=1&q='.$url; $str = self::get_html($url); $data = json_decode($str); return (!isset($data->responseData->cursor->estimatedResultCount)) ? '0' : intval($data->responseData->cursor->estimatedResultCount); } /** * * gets the inbounds links from a site * @param string $url * @param integer */ public static function google_links($url) { $request = "http://www.google.com/search?q=" . urlencode("link:" . $url) . "&hl=en"; $data = self::get_html($request); preg_match('/<div id=resultStats>(About )?([\d,]+) result/si', $data, $l); return ($l[2]) ? $l[2] : NULL; } /** * * web of trust rating * @param string $url * @reutn integer */ public static function WOT_rating($url) { $domain = self::domain_name($url); $request = "http://api.mywot.com/0.4/public_query2?target=" . $domain; $data = self::get_html($request); preg_match_all('/<application r="(\d+)" c="(\d+)"\/>/si', $data, $regs); $trustworthiness = ($regs[2][0]) ? $regs[2][0] : NULL; return (is_numeric($trustworthiness))? $trustworthiness:NULL; } /** * * how old is the domain? * @param string $domain * @return integer unixtime */ public static function domain_age($domain) { $request = "http://reports.internic.net/cgi/whois?whois_nic=" . $domain . "&type=domain"; $data = self::get_html($request); preg_match('/Creation Date: ([a-z0-9-]+)/si', $data, $p); return (!$p[1])?FALSE:strtotime($p[1]); } /** * * counts how many tweets about the url * @param string $url * @return integer */ public static function tweet_count($url) { $url = urlencode($url); $twitterEndpoint = "http://urls.api.twitter.com/1/urls/count.json?url=%s"; $fileData = file_get_contents(sprintf($twitterEndpoint, $url)); $json = json_decode($fileData, true); unset($fileData); // free memory return (is_numeric($json['count']))? $json['count']:NULL; } /** * Returns the total amount of Facebook Shares for a single page * * @link https://graph.facebook.com/ * @param string The URL to check. * @return integer Returns the total amount of Facebook */ public static function facebook_shares($q) { //Execution and result of Json $str = self::get_html('http://graph.facebook.com/?id='.urlencode($q)); $data = json_decode($str); //Return only number of facebook shares $r = $data->shares; return ($r != NULL) ? $r : intval('0'); } /** * * get the pagespeed rank over 100 * @param string $url * @return integer */ public static function page_speed($url) { $url = 'https://developers.google.com/_apps/pagespeed/run_pagespeed?url='.$url.'&format=json'; $str = self::get_html($url); $data = json_decode($str); return intval($data->results->score); } /** * * get google page rank * @param string $url * @return integer */ public static function page_rank($url) { $query = "http://toolbarqueries.google.com/tbr?client=navclient-auto&ch=".self::CheckHash(self::HashURL($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 *= $Magic; //If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31), // the result of converting to integer is undefined // refer to if ($Check >= $Int32Unit) { $Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit)); //if the check less than -2^31 $Check = ($Check < -2147483648) ? ($Check + $Int32Unit) : $Check; } $Check += ord($Str{$i}); } return $Check; } /** * Genearate a hash for a url */ public static function HashURL($String) { $Check1 = self::StrToNum($String, 0x1505, 0x21); $Check2 = self::StrToNum($String, 0, 0x1003F); $Check1 >>= 2; $Check1 = (($Check1 >> 4) & 0x3FFFFC0 ) | ($Check1 & 0x3F); $Check1 = (($Check1 >> 4) & 0x3FFC00 ) | ($Check1 & 0x3FF); $Check1 = (($Check1 >> 4) & 0x3C000 ) | ($Check1 & 0x3FFF); $T1 = (((($Check1 & 0x3C0) << 4) | ($Check1 & 0x3C)) <<2 ) | ($Check2 & 0xF0F ); $T2 = (((($Check1 & 0xFFFFC000) << 4) | ($Check1 & 0x3C00)) << 0xA) | ($Check2 & 0xF0F0000 ); return ($T1 | $T2); } /** * genearate a checksum for the hash string */ public static function CheckHash($Hashnum) { $CheckByte = 0; $Flag = 0; $HashStr = sprintf('%u', $Hashnum) ; $length = strlen($HashStr); for ($i = $length - 1; $i >= 0; $i --) { $Re = $HashStr{$i}; if (1 === ($Flag % 2)) { $Re += $Re; $Re = (int)($Re / 10) + ($Re % 10); } $CheckByte += $Re; $Flag ++; } $CheckByte %= 10; if (0 !== $CheckByte) { $CheckByte = 10 - $CheckByte; if (1 === ($Flag % 2) ) { if (1 === ($CheckByte % 2)) { $CheckByte += 9; } $CheckByte >>= 1; } } return '7'.$CheckByte.$HashStr; } }
使用范例