下面是本人搜集整理的一个利用PHP获取网站的google PR值的代码的方法,特贡献出来分享一下,完整代码如下:
<?php $url='www.phpernote.com'; define('G_PR_GET_TYPE_FILE', 1); define('G_PR_GET_TYPE_SOCKET', 2); echo getGooglePR($url);//获取http://www.phpernote.com的PR值 function getGooglePR($_url,$gettype=G_PR_GET_TYPE_SOCKET){ $url='info:'.$_url; $ch=GCH(strord($url)); $ch=NewGCH($ch); $url=str_replace("_","%5F",'info:'.urlencode($_url)); $googlePRUrl="http://toolbarqueries.google.com/tbr?client=navclient-auto&ch=6".$ch."&ie=UTF-8&oe=UTF-8&features=Rank&q=".$url; $pr_str=retrieveURLContent($googlePRUrl,$gettype); return substr($pr_str,strrpos($pr_str, ":")+1); } function zeroFill($a, $b){ $z=hexdec('8'.implode('',array_fill(0,PHP_INT_SIZE*2-1,'0'))); if($z&$a){ $a=($a>>1); $a &=(~$z); $a |=hexdec('4'.implode('',array_fill(0,PHP_INT_SIZE*2-1,'0'))); $a=($a>>($b-1)); }else{ $a=($a>>$b); } return $a; } function trunkbitForce32bit($n){ if(PHP_INT_SIZE<=4){ settype($n,'float'); if($n<0){ $n+=4294967296; } return $n; }else{ $clearbit=''; for($i=0;$i<PHP_INT_SIZE-4;$i++){ $clearbit.='00'; } for($i=0;$i<4;$i++){ $clearbit.='ff'; } return ($n&hexdec($clearbit)); } } function bigxor($m,$n){ return $m ^ $n; } function mix($a,$b,$c){ $a=trunkbitForce32bit($a); $b=trunkbitForce32bit($b); $c=trunkbitForce32bit($c); $a-=$b; $a=trunkbitForce32bit($a); $a-=$c; $a=trunkbitForce32bit($a); $a=bigxor($a,(zeroFill($c,13))); $a=trunkbitForce32bit($a); $b-=$c; $b=trunkbitForce32bit($b); $b-=$a; $b=trunkbitForce32bit($b); $b=bigxor($b,trunkbitForce32bit($a<<8)); $b=trunkbitForce32bit($b); $c-=$a; $c=trunkbitForce32bit($c); $c-=$b; $c=trunkbitForce32bit($c); $c=bigxor($c,(zeroFill($b,13))); $c=trunkbitForce32bit($c); $a-=$b; $a=trunkbitForce32bit($a); $a-=$c; $a=trunkbitForce32bit($a); $a=bigxor($a,(zeroFill($c,12))); $a=trunkbitForce32bit($a); $b-=$c; $b=trunkbitForce32bit($b); $b-=$a; $b=trunkbitForce32bit($b); $b=bigxor($b,trunkbitForce32bit($a<<16)); $c-=$a; $c=trunkbitForce32bit($c); $c-=$b; $c=trunkbitForce32bit($c); $c=bigxor($c,(zeroFill($b,5))); $c=trunkbitForce32bit($c); $a-=$b; $a=trunkbitForce32bit($a); $a-=$c; $a=trunkbitForce32bit($a); $a=bigxor($a,(zeroFill($c,3))); $a=trunkbitForce32bit($a); $b-=$c; $b=trunkbitForce32bit($b); $b-=$a; $b=trunkbitForce32bit($b); $b=bigxor($b,trunkbitForce32bit($a<<10)); $c-=$a; $c=trunkbitForce32bit($c); $c-=$b; $c=trunkbitForce32bit($c); $c=bigxor($c,(zeroFill($b,15))); $c=trunkbitForce32bit($c); return array($a,$b,$c); } function NewGCH($ch){ $ch=(trunkbitForce32bit(($ch/7 )<<2)|((myfmod($ch,13))&7)); $prbuf=array(); $prbuf[0]=$ch; for($i=1;$i<20;$i++){ $prbuf[$i]=$prbuf[$i-1] - 9; } $ch=GCH(c32to8bit($prbuf)); return $ch; } function myfmod($x,$y){ $i=floor($x/$y ); return ($x - $i * $y ); } function c32to8bit($arr32){ $arr8=array(); for($i=0;$i<count($arr32);$i++){ for($bitOrder=$i * 4;$bitOrder<=$i * 4 + 3;$bitOrder++){ $arr8[$bitOrder]=$arr32[$i]&255; $arr32[$i]=zeroFill($arr32[$i], 8 ); } } return $arr8; } function GCH($url, $length=null){ if(is_null($length)){ $length=sizeof($url); } $init=0xE6359A60; $a=0x9E3779B9; $b=0x9E3779B9; $c=0xE6359A60; $k=0; $len=$length; $mixo=array(); while($len >=12){ $a+=($url[$k+0] +trunkbitForce32bit($url[$k+1]<<8)+trunkbitForce32bit($url[$k+2]<<16)+trunkbitForce32bit($url[$k+3]<<24)); $b+=($url[$k+4] +trunkbitForce32bit($url[$k+5]<<8) +trunkbitForce32bit($url[$k+6]<<16) +trunkbitForce32bit($url[$k+7]<<24)); $c+=($url[$k+8] +trunkbitForce32bit($url[$k+9]<<8) +trunkbitForce32bit($url[$k+10]<<16) +trunkbitForce32bit($url[$k+11]<<24)); $mixo=mix($a,$b,$c); $a=$mixo[0];$b=$mixo[1];$c=$mixo[2]; $k+=12; $len-=12; } $c+=$length; switch($len){ case 11: $c+=trunkbitForce32bit($url[$k+10]<<24); case 10: $c+=trunkbitForce32bit($url[$k+9]<<16); case 9 : $c+=trunkbitForce32bit($url[$k+8]<<8); case 8 : $b+=trunkbitForce32bit($url[$k+7]<<24); case 7 : $b+=trunkbitForce32bit($url[$k+6]<<16); case 6 : $b+=trunkbitForce32bit($url[$k+5]<<8); case 5 : $b+=trunkbitForce32bit($url[$k+4]); case 4 : $a+=trunkbitForce32bit($url[$k+3]<<24); case 3 : $a+=trunkbitForce32bit($url[$k+2]<<16); case 2 : $a+=trunkbitForce32bit($url[$k+1]<<8); case 1 : $a+=trunkbitForce32bit($url[$k+0]); } $mixo=mix($a, $b, $c ); $mixo[2]=trunkbitForce32bit($mixo[2]); if($mixo[2]<0){ return (hexdec('1'.implode('',array_fill(0,PHP_INT_SIZE*2,'0'))) + $mixo[2] ); }else{ return $mixo[2]; } } function strord($string){ for($i=0;$i<strlen($string);$i++){ $result[$i]=ord($string{$i}); } return $result; } function retrieveURLContent($url,$gettype){ switch($gettype){ case G_PR_GET_TYPE_FILE: return retrieveURLContentByFile($url); break; default: return retrieveURLContentBySocket($url); break; } } function retrieveURLContentByFile($url){ $fd=@fopen($url,"r"); if(!$fd){ return false; } $result=""; while($buffer=fgets($fd, 4096)){ $result.=$buffer; } fclose($fd); return $result; } function retrieveURLContentBySocket($url,$host="",$port=80,$timeout=30){ if($host ==""){ if(!($pos=strpos($url,'://'))){return false;} $host=substr($url, $pos+3, strpos($url,'/',$pos+3) - $pos - 3); $uri=substr($url,strpos($url,'/',$pos+3)); }else{ $uri=$url; } $request="GET ".$uri." HTTP/1.0\r\n"."Host: ".$host."\r\n"."Accept: */*\r\n"."User-Agent: ZealGet\r\n"."\r\n"; $sHnd=@fsockopen ($host, $port, $errno, $errstr, $timeout); if(!$sHnd){ return false; } @fputs($sHnd, $request); $result=''; while (!feof($sHnd)){ $result.=fgets($sHnd,4096); } fclose($sHnd); $headerend=strpos($result,"\r\n\r\n"); if(is_bool($headerend)){ return $result; }else{ return substr($result,$headerend+4); } }