Here is an extract of the code. I have to clean it and improve it and in 0.0.2, all the code will be published.

<?php
@set_time_limit(0);
@include 'fonctions_google_pr.php';

$c=9;
$api_id='YahooDemo';

$pays = $_POST['country'];

if ( (isset($_POST['kw1']))&& ($_POST['kw1']!='') ) 
{
switch($pays)
{
  case 1 :
    $ndd = "fr";
	$lang = "fr";
    break;
  case 2 :
    $ndd = "com";
	$lang = "en";
    break;
  case 3 :
    $ndd = "es";
	$lang = "es";
    break;
  case 4 :
    $ndd = "it";
	$lang = "it";
    break;
  case 5 :
    $ndd = "de";
	$lang = "de";
    break;
  case 6 :
    $ndd = "be";
	$lang = "be";
    break;
  case 7 :
    $ndd = "pt";
	$lang = "pt";
    break;
  case 8 :
    $ndd = "cn";
	$lang = "cn";
    break;
  case 9 :
    $ndd = "co.uk";
	$lang = "en";
    break;
  case 10 :
    $ndd = "co.jp";
	$lang = "ja";
    break;
  case 11 :
    $ndd = "ch";
	$lang = "fr";
    break;
  case 12 :
    $ndd = "ca";
	$lang = "fr";
    break;
  case 13 :
    $ndd = "ru";
	$lang = "ru";
    break;
	}
	$kw=trim(strip_tags($_POST['kw1']));
			$ch = curl_init();
			echo "<p><strong>Cliquer sur le titre des colonnes pour classer soit par PR soit par position</strong></p>";
			echo "<br /><h3>Mot-clé : ",$kw,"</h3>";
			echo "<h6>Résultats Google</h6>";
			$pagenum = 0;			
			$googlefrurl = "http://www.google." . $ndd . "/search?hl=" . $lang . "&q=" . urlencode($kw) . "&start=$pagenum";
			echo ("<p>Site : <strong>Google.".$ndd."</strong></p>");
			echo '<table id="test1" cellpadding="0" cellspacing="0" border="0" class="rowstyle-alt colstyle-alt no-arrow"><thead><tr>';
			echo '<th class="sortable-numeric">Position sur Google</th>';
			echo '<th class="sortable-text">Url</th>';
			echo '<th class="sortable-numeric">Pagerank</th>';
			if ($_POST['liens_yahoo']=='oui')
			{
			echo '<th class="sortable-numeric">Yahoo Backlinks</th>';
			}
			echo '</tr></thead><tbody>';
						
			while($pagenum <= $c) {	
				if (function_exists('curl_init')) 
				{	
					curl_setopt($ch, CURLOPT_USERAGENT, $GLOBALS['useragent']);
					curl_setopt($ch, CURLOPT_URL,$googlefrurl);
					curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
					$result=curl_exec ($ch);
				} 
				else 
				{
					$result= file_get_contents($googlefrurl);
				} 	
			   
				preg_match_all('/<h3 class=r><a href="(.*?)"/si', $result, $matches);
				$i = 0;
				$n = count($matches[1]);
				$pagenum++;
				$pagenum2 = $pagenum.'0';
				$googlefrurl = "http://www.google." . $ndd . "/search?hl=" . $lang . "&q=" . urlencode($kw) . "&start=$pagenum2&safe=off&pwst=1&filter=0";
				while($i < $n) {
					$url_new = trim($matches[1][$i]);
					$rs_pr = pagerank($url_new);
					if (!is_numeric($rs_pr)) {$rs_pr=0;}
					echo "<tr>";
						if (($i+1)==10) 
						{
							echo "<td>".($pagenum)."0"."</td>";
						} 
						else 
						{
							echo "<td>".($pagenum-1).($i+1)."</td>";
						}
					echo "<td align='left'><a target='_blank' href='".$url_new."'>".$url_new."</a></td>";
					echo "<td>".$rs_pr."</td>";
					if ($_POST['liens_yahoo']=='oui') 
					{
					echo "<td>".get_nb_bl_yahoo($url_new)."</td>";
					}
					echo "</tr>";
				flush();				
				$i++;
				}//while
			}//while	
					curl_close ($ch);
					echo '</tbody></table>';
}//POST GO

?>