Get Google and Alexa rank of a domain using PHP
There are already a lot of ways to find gpr/alexa rank of a domain using php. But not all of them work on 64bit servers. Here is the code that I always use for finding the google page rank and alexa rank of a website.
Get Google Page rank
function google_page_rank($url) { // URL or domain name
if (strlen(trim($url))>0) {
$_url = eregi("http://",$url)? $url:"http://".$url;
$pagerank = trim(GooglePageRank($_url));
if (empty($pagerank)) $pagerank = 0;
return (int)($pagerank);
}
return 0;
}
function GooglePageRank($url) {
$fp = fsockopen("toolbarqueries.google.com", 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br />\n";
} else {
$out = "GET /search?client=navclient-auto&ch=".CheckHash(HashURL($url))."&features=Rank&q=info:".$url."&num=100&filter=0 HTTP/1.1\r\n";
$out .= "Host: toolbarqueries.google.com\r\n";
$out .= "User-Agent: Mozilla/4.0 (compatible; GoogleToolbar 2.0.114-big; Windows XP 5.1)\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){} else{
$pagerank = substr($data, $pos + 9);
}
}
fclose($fp);
return $pagerank;
}
}
function StrToNum($Str, $Check, $Magic) {
$Int32Unit = 4294967296; // 2^32
$length = strlen($Str);
for ($i = 0; $i < $length; $i++) {
$Check *= $Magic;
if ($Check >= $Int32Unit) {
$Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit));
$Check = ($Check < -2147483648)? ($Check + $Int32Unit) : $Check;
}
$Check += ord($Str{$i});
}
return $Check;
}
function HashURL($String) {
$Check1 = StrToNum($String, 0x1505, 0x21);
$Check2 = StrToNum($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 | $T2);
}
function CheckHash($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.$HashStr;
}
Find Alexa Rank
function alexaRank($domain){
$remote_url = 'http://data.alexa.com/data?cli=10&dat=snbamz&url='.trim($domain);
$search_for = '<POPULARITY URL';
if ($handle = @fopen($remote_url, "r")) {
while (!feof($handle)) {
$part .= fread($handle, 100);
$pos = strpos($part, $search_for);
if ($pos === false)
continue;
else
break;
}
$part .= fread($handle, 100);
fclose($handle);
}
$str = explode($search_for, $part);
$str = array_shift(explode('"/>', $str[1]));
$str = explode('TEXT="', $str);
return $str[1];
}
Hope this will help you. If you know any better(working) solution please let me know via comments.
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12 Comments to “Get Google and Alexa rank of a domain using PHP”
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My Elance Profile
this is really amazing. the google page rank looks fine. but, i have a question about alexa ranking. wont it break when alexa changes its page (UI) layout? also, is it legal to get it this way?
let me know if i can use it in my projects. thanks again for the great code. you rock!
Bappi,
Yes you are right. This is not the proper way for finding the alexa rank and it won’t work if alexa.com changes their layout. You can get it in formal way from this XML:
http://data.alexa.com/data?cli=10&dat=snbamz&url=abcoder.com
and the php code for this is:
function alexaRank($domain){ $remote_url = 'http://data.alexa.com/data?cli=10&dat=snbamz&url='.trim($domain); $search_for = '<POPULARITY URL'; if ($handle = @fopen($remote_url, "r")) { while (!feof($handle)) { $part .= fread($handle, 100); $pos = strpos($part, $search_for); if ($pos === false) continue; else break; } $part .= fread($handle, 100); fclose($handle); } $str = explode($search_for, $part); $str = array_shift(explode('"/>', $str[1])); $str = explode('TEXT="', $str); return $str[1]; }But the big problem with this is you won’t get correct alexa rank of subdomains from this. Say blogspot.com and abcoder.blogsopt.com will show same alexa rank, which is wrong.
For this problem I’m using the method of parsing the alexa website and for now it’s getting accurate alexa rank for subdomains :)
Lemme know if you get any better thing.
Thanks
Bappi,
I guess http://data.alexa.com/data?cli=10&dat=snbamz&url=http://girlwithaonetrackmind.blogspot.com/ is providing the correct alexa rank of subdomain now!
It seems they have updated their service. :)
adnan,
right you are! the above url is returning correct alexa rank for subdomains too. please modify your php and post it in comments to reflect the changes. that would be really helpful for me and others too.
thanks again for your effort. :)
oppss.. sorry. i did not notice that your previous code (in comment) is appropriate for this purpose. :P
Bappi,
Thank you. I’ve already posted the modified code in the comment, I’ll modify my post also..
The interesting thing is last time I checked this code on 6 June here http://www.abcoder.com/alexa.php to find out the alexa rank of http://sethgodin.typepad.com and it returned 215 (the alexa rank of typepad.com). Now the same code is providing the correct alexa rank 8935 :)
The alexa rank finding code in the main post is updated.
usually developers dont use fopen for remote url and hosting servers also may not enable them due to security reason. Why dont you use fsockopen or cURL ?
@Adnan, good point, CURL is not enabled/supported by all hosting providers. I wrote the code for a module which is publicly used on various hosting providers.
But thanks for your suggesting and I’ll update my code soon to use CURL if available otherwise fopen/fsockopen.
Thanks
Thanks for this script
The Alexa script works perfectly, thanks a lot ;)
@Zyva, glad to know that :)