que se ledebe implementar
Este codigo
Código PHP:
<?php // Google PageRank Calculator function by ZeNiTRaM - version 0.1 // Licensed under the GPL License // eMail me at zenitram [AT] dubmail.net // Uses code from The Google Checksum Calculator, by Alex Stapleton, Andy Doctorow, Vijay "Cyberax" Bhatter, and a few others, licensed under the public domain ([url]http://www.mobileread.com/forums/showpost.php?p=7769&postcount=87[/url]) and XMLize.php by Hans Anderson ([url]http://www.hansanderson.com/php/xml/[/url]). // Use: $pagerank = GetPagerank("http://www.google.es"); // GetPagerank returns a STRING with the Pagerank number directly from Google // S P A N I S H----------------------------------------------------------------------------------- // Calculadora Google Pagerank por ZeNiTRaM - version 0.1 // Licenciado bajo la licencia GPL. // Contacta conmigo en zenitram [AT] dubmail.net // Usa codigo de The Google Checksum Calculator, por Alex Stapleton, Andy Doctorow, Vijay "Cyberax" Bhatter, y unos cuantos otros mas, licenciado bajo dominio publico ([url]http://www.mobileread.com/forums/showpost.php?p=7769&postcount=87[/url]) y XMLize.php por Hans Anderson ([url]http://www.hansanderson.com/php/xml/[/url]). /* Changelog 0.1: Started counting versions and tidied all the code. Maybe I will add some new functions to get more information from Google. He empezado a contar versiones y limpiado un poco todo el codigo. Quizas añada nuevas funciones para conseguir mas informacion de Google. */ // Function GetPagerank function GetPagerank($urlo) { define('GOOGLE_MAGIC', 0xE6359A60); $url = 'info:'.$urlo; $ch = GoogleCH(strord($url)); $chf = "6$ch"; $file = file("http://www.google.com/search?client=navclient-auto&ch=$chf&q=$url"); $file_str = implode("", $file); $xml = xmlize($file_str); $pr = $xml["GSP"]["#"]["RES"][0]["#"]["R"][0]["#"]["RK"][0]["#"]; if(!$pr) $pr = 0; return $pr; } //Starts code from XMLize.php function xmlize($data, $WHITE=1) { $data = trim($data); $vals = $index = $array = array(); $parser = xml_parser_create(); xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, $WHITE); if ( !xml_parse_into_struct($parser, $data, $vals, $index) ) { die(sprintf("XML error: %s at line %d", xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser))); } xml_parser_free($parser); $i = 0; $tagname = $vals[$i]['tag']; if ( isset ($vals[$i]['attributes'] ) ) { $array[$tagname]['@'] = $vals[$i]['attributes']; } else { $array[$tagname]['@'] = array(); } $array[$tagname]["#"] = xml_depth($vals, $i); return $array; } /* * * You don't need to do anything with this function, it's called by * xmlize. It's a recursive function, calling itself as it goes deeper * into the xml levels. If you make any improvements, please let me know. * * */ function xml_depth($vals, &$i) { $children = array(); if ( isset($vals[$i]['value']) ) { array_push($children, $vals[$i]['value']); } while (++$i < count($vals)) { switch ($vals[$i]['type']) { case 'open': if ( isset ( $vals[$i]['tag'] ) ) { $tagname = $vals[$i]['tag']; } else { $tagname = ''; } if ( isset ( $children[$tagname] ) ) { $size = sizeof($children[$tagname]); } else { $size = 0; } if ( isset ( $vals[$i]['attributes'] ) ) { $children[$tagname][$size]['@'] = $vals[$i]["attributes"]; } $children[$tagname][$size]['#'] = xml_depth($vals, $i); break; case 'cdata': array_push($children, $vals[$i]['value']); break; case 'complete': $tagname = $vals[$i]['tag']; if( isset ($children[$tagname]) ) { $size = sizeof($children[$tagname]); } else { $size = 0; } if( isset ( $vals[$i]['value'] ) ) { $children[$tagname][$size]["#"] = $vals[$i]['value']; } else { $children[$tagname][$size]["#"] = ''; } if ( isset ($vals[$i]['attributes']) ) { $children[$tagname][$size]['@'] = $vals[$i]['attributes']; } break; case 'close': return $children; break; } } return $children; } /* function by [email][email protected][/email], a HUGE help! * * this helps you understand the structure of the array xmlize() outputs * * usage: * traverse_xmlize($xml, 'xml_'); * print '<pre>' . implode("", $traverse_array . '</pre>'; * * */ function traverse_xmlize($array, $arrName = "array", $level = 0) { foreach($array as $key=>$val) { if ( is_array($val) ) { traverse_xmlize($val, $arrName . "[" . $key . "]", $level + 1); } else { $GLOBALS['traverse_array'][] = '$' . $arrName . '[' . $key . '] = "' . $val . "\"\n"; } } return 1; } //Ends code from XMLize.php //Starts code from The Google Checksum Calculator //unsigned shift right function zeroFill($a, $b) { $z = hexdec(80000000); if ($z & $a) { $a = ($a>>1); $a &= (~$z); $a |= 0x40000000; $a = ($a>>($b-1)); } else { $a = ($a>>$b); } return $a; } function mix($a,$b,$c) { $a -= $b; $a -= $c; $a ^= (zeroFill($c,13)); $b -= $c; $b -= $a; $b ^= ($a<<8); $c -= $a; $c -= $b; $c ^= (zeroFill($b,13)); $a -= $b; $a -= $c; $a ^= (zeroFill($c,12)); $b -= $c; $b -= $a; $b ^= ($a<<16); $c -= $a; $c -= $b; $c ^= (zeroFill($b,5)); $a -= $b; $a -= $c; $a ^= (zeroFill($c,3)); $b -= $c; $b -= $a; $b ^= ($a<<10); $c -= $a; $c -= $b; $c ^= (zeroFill($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) /* all the case statements fall through */ { 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]); /* case 0: nothing left to add */ } $mix = mix($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 $result; } //End code from The Google Checksum Calculator //Añadido por txuspe echo GetPagerank("$link_url"); ?> 
