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簡介:
查看pagerank是對每一個做seo的人是必要的,當然做seo的工具也是必備 組件啦^_^
func_PageRank.php:
<?
/*
Cehek PageRank function
created by kui @20061014
website : kui.name
this funciton need opensocfile funciton support!!!
*/
function PR_StrToNum($Str, $Check, $Magic)
{
$Int32Unit = 4294967296; // 2^32
$length = strlen($Str);
for ($i = 0; $i < $length; $i++) {
$Check *= $Magic;
//If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31),
// the result of converting to integer is undefined
// refer to http://www.php.net/manual/en/language.types.integer.php
//if (is_float($Check)) {
if ($Check >= $Int32Unit) {
$Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit));
// – 2^31
$Check = ($Check < -2147483647) ? ($Check + $Int32Unit) : $Check;
}
$Check += ord($Str{$i});
}
return $Check;
}
function PR_HashURL($String)
{
$Check1 = PR_StrToNum($String, 0×1505, 0×21);
$Check2 = PR_StrToNum($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 | $T2);
}
function PR_CheckHash($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.$HashStr;
}
function getPR($domain)
{
ini_set ( “user_agent”, “Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)” );
$url=“http://toolbarqueries.google.com/search?client=navclient-auto&features=Rank:&q=info:”.$domain.“&ch=”.PR_CheckHash(PR_HashURL($domain));
$con = file_get_contents($url);
ereg (“Rank_[0-9]{1}:[0-9]{1}:([0-9]{1,2})”,$con ,$regs);
return $regs[1];
}
?>