التحقق من الدومين ,معرفة page rank

<?php
/**
# ######################################################################
# Project: PHPLinkDirectory: Version 2.1.2
#
# **********************************************************************
# Copyright (C) 2004-2006 NetCreated, Inc. (https://www.netcreated.com/)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# **********************************************************************
#
# For questions, help, comments, discussion, etc., please join the
# PHP Link Directory Forum https://www.phplinkdirectory.com/forum/
#
# @link https://www.phplinkdirectory.com/
# @copyright 2004-2006 NetCreated, Inc. (https://www.netcreated.com/)
# @projectManager David DuVal <david@david-duval.com>
# @package PHPLinkDirectory
# ######################################################################
*/ /*
Written and contributed by
Alex Stapleton,
Andy Doctorow,
Tarakan,
Bill Zeller,
Vijay \"Cyberax\" Bhatter
traB
This code is released into the public domain
Xor32 class created by MagicBeanDip
*/
define (\'GOOGLE_MAGIC\', 0xE6359A60); //This class should work on most servers
function zeroFill($a, $b)
{
$z = hexdec (80000000);
if ($z & $a)
{
$a = ($a>>1);
$a &= (~$z);
$a |= 0x40000000;
$a = ($a>>($b-1));
}
else
{
$a = ($a>>$b);
} return $a;
} function xor32($a, $b)
{
return int32($a) ^ int32($b);
} //return least significant 32 bits
//works by telling unserialize to create an integer even though we provide a double value
function int32($x)
{
return unserialize (\"i:$x;\");
//return intval($x); // This line doesn\'t work on all servers.
} function mix($a,$b,$c)
{
$a -= $b; $a -= $c; $a = xor32($a,zeroFill($c,13));
$b -= $c; $b -= $a; $b = xor32($b,$a<<8);
$c -= $a; $c -= $b; $c = xor32($c,zeroFill($b,13));
$a -= $b; $a -= $c; $a = xor32($a,zeroFill($c,12));
$b -= $c; $b -= $a; $b = xor32($b,$a<<16);
$c -= $a; $c -= $b; $c = xor32($c,zeroFill($b,5));
$a -= $b; $a -= $c; $a = xor32($a,zeroFill($c,3));
$b -= $c; $b -= $a; $b = xor32($b,$a<<10);
$c -= $a; $c -= $b; $c = xor32($c,zeroFill($b,15)); return array($a,$b,$c);
} function GoogleCH($url, $length=null, $init=GOOGLE_MAGIC)
{
if (is_null ($length))
{
$length = sizeof ($url);
}
$a = $b = 0x9E3779B9;
$c = $init;
$k = 0;
$len = $length; while ($len >= 12)
{
$a += ($url[$k+0] +($url[$k+1]<<8) +($url[$k+2]<<16) +($url[$k+3]<<24));
$b += ($url[$k+4] +($url[$k+5]<<8) +($url[$k+6]<<16) +($url[$k+7]<<24));
$c += ($url[$k+8] +($url[$k+9]<<8) +($url[$k+10]<<16)+($url[$k+11]<<24));
$mix = mix($a,$b,$c);
$a = $mix[0]; $b = $mix[1]; $c = $mix[2];
$k += 12;
$len -= 12;
}
$c += $length;
switch ($len)
{
case 11: $c+=($url[$k+10]<<24);
case 10: $c+=($url[$k+9]<<16);
case 9 : $c+=($url[$k+8]<<8);
/* the first byte of c is reserved for the length */
case 8 : $b+=($url[$k+7]<<24);
case 7 : $b+=($url[$k+6]<<16);
case 6 : $b+=($url[$k+5]<<8);
case 5 : $b+=($url[$k+4]);
case 4 : $a+=($url[$k+3]<<24);
case 3 : $a+=($url[$k+2]<<16);
case 2 : $a+=($url[$k+1]<<8);
case 1 : $a+=($url[$k+0]);
}
$mix = mix($a,$b,$c);
/* report the result */
return $mix[2];
} //converts a string into an array of integers containing the numeric value of the char
function strord($string)
{
for ($i=0; $i < strlen ($string); $i++)
{
$result[$i] = ord ($string{$i});
}
return $result;
} //returns -1 if no page rank was found
function get_page_rank($url)
{
$ch = \"6\".GoogleCH(strord(\"info:\" . $url)); $pagerank = -1;
$fp = @ fsockopen (\"www.google.com\", 80, $errno, $errstr, 10);
if (!$fp)
{
echo \"$errstr ($errno)<br />\\n\";
}
else
{
$out = \"GET /search?client=navclient-auto&ch=\" . $ch . \"&features=Rank&q=info:\" . $url . \" HTTP/1.1\\r\\n\" ;
$out .= \"Host: www.google.com\\r\\n\" ;
$out .= \"Connection: Close\\r\\n\\r\\n\" ;
@ fwrite ($fp, $out); while (!feof ($fp))
{
$data = @ fgets ($fp, 128);
$pos = strpos ($data, \"Rank_\"); if ($pos !== false)
{
$pagerank = trim (substr ($data, $pos + 9));
}
}
@ fclose ($fp);
} $i=0;
while ($i<10) {
$i++ ;
if($pagerank==$i)
{
$pagerank=\"<img src=\\\"$url_site/dir/images/pr$i.gif\\\" alt=\\\"10/$pagerank\\\" /> $pagerank/10\"; } } return $pagerank;
}
?>

print get_page_rank(\"رابط الموقع \");