php实现专业获取网站SEO信息类实例

2024-05-04 23:33:47

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这篇文章主要介绍了php实现专业获取网站SEO信息类,实例分析了seoreport类针对网站SEO信息检查与获取的技巧,非常具有实用价值,需要的朋友可以参考下

本文实例讲述了php实现专业获取网站SEO信息类。分享给大家供大家参考。具体如下：

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 http://www.phpeasycode.com && 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(!emptyempty($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 name="(/d+)" 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 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) ? ($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

<?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;