How to get alexa rank using php?

I tried to many script of alexa which return you the rank of website but they all script return 0 always.
so i make a new alexa script which return exact rank of website and this works.

simple copy and paste alexa script code in your php file, it will also work on localhost

<?php
    function alexaRank($domain)
    {
        $remote_url = 'http://data.alexa.com/data?cli=10&dat=snbamz&url='.trim($domain);
        $search_for = '<POPULARITY URL';
        $part='';
        if ($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('"', $str);
        return $str[3];
    }
echo "Alexa ranking: " . alexaRank("http://www.yahoo.com");
?>

If this post is use full to you and this alexa script works so please comment on this post! :)
happy coding