Este es un fragmento del codigo. Gracias.
Código PHP:
function showDomainResult($domain,$server,$findText){
if ($this->tr == 0){
$this->tr = 1;
$class = " class='tr2'";
} else {
$this->tr = 0;
$class = "";
}
if ($this->checkDomain($domain,$server,$findText)){
echo "<tr $class><td>$domain</td><td class='ava'>DISPONIBLE</td></tr>";
}
else echo "<tr $class><td>$domain</td><td class='tak'>NO DISPONIBLE</td></tr>";
}
Código PHP:
<?php
/*************************************************
* Max's Whois
*
* Version: 1.0
* Date: 2007-11-28
*
****************************************************/
class maxWhois{
var $serverList;
var $tr = 0;
function maxWhois(){
$this->serverList[0]['top'] = 'com';
$this->serverList[0]['server'] = 'whois.crsnic.net';
$this->serverList[0]['response'] = 'No match for';
$this->serverList[0]['check'] = true;
$this->serverList[1]['top'] = 'net';
$this->serverList[1]['server'] = 'whois.crsnic.net';
$this->serverList[1]['response'] = 'No match for';
$this->serverList[1]['check'] = false;
$this->serverList[2]['top'] = 'org';
$this->serverList[2]['server'] = 'whois.publicinterestregistry.net';
$this->serverList[2]['response'] = 'NOT FOUND';
$this->serverList[2]['check'] = false;
$this->serverList[3]['top'] = 'info';
$this->serverList[3]['server'] = 'whois.afilias.net';
$this->serverList[3]['response'] = 'NOT FOUND';
$this->serverList[3]['check'] = false;
$this->serverList[4]['top'] = 'name';
$this->serverList[4]['server'] = 'whois.nic.name';
$this->serverList[4]['response'] = 'No match';
$this->serverList[4]['check'] = false;
$this->serverList[5]['top'] = 'us';
$this->serverList[5]['server'] = 'whois.nic.us';
$this->serverList[5]['response'] = 'Not found:';
$this->serverList[5]['check'] = false;
$this->serverList[6]['top'] = 'biz';
$this->serverList[6]['server'] = 'whois.nic.biz';
$this->serverList[6]['response'] = 'Not found';
$this->serverList[6]['check'] = false;
$this->serverList[7]['top'] = 'ca';
$this->serverList[7]['server'] = 'whois.cira.ca';
$this->serverList[7]['response'] = 'AVAIL';
$this->serverList[7]['check'] = false;
$this->serverList[8]['top'] = 'tv';
$this->serverList[8]['server'] = 'whois.internic.net';
$this->serverList[8]['response'] = 'No match for';
$this->serverList[8]['check'] = false;
}
function showHeader(){
?>
<div id="container">
<div id="header"><div id="header_left"></div>
<div id="header_main">Registre su Dominio</div><div id="header_right"></div></div>
<div id="content">
<?php
}
function showWhoisForm(){
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" >
<table class="dtable2">
<tr><th colspan="5">Ingrese el nombre de Dominio:</th></tr>
<tr><td colspan="5"><center>www.<input name="domain" type="text" size="35" /></center></td></tr>
<tr><th colspan="5">Selecccione la extencion:</th></tr>
<tr>
<?php
$i = 0;
foreach ($this->serverList as $value) {
if ($value['check'] == true) $checked=" checked ";
else $checked = " ";
echo '<td><input type="checkbox" name="top_'.$value['top'].'"'.$checked.'/>.'.$value['top'].'</td>';
$i++;
if ($i > 4) {
$i = 0;
echo '</tr><tr>';
}
}
?>
</tr>
</table>
<center><input type="submit" name="submitBtn" class="sbtn" value="Buscar" /></center>
</form>
<?php
}
function showFooter(){
?>
</div>
</div>
<?php
}
function processWhois(){
$this->showHeader();
if (!isset($_POST['submitBtn'])){
$this->showWhoisForm();
} else {
$domainName = (isset($_POST['domain'])) ? $_POST['domain'] : '';
for ($i = 0; $i < sizeof($this->serverList); $i++) {
$actTop = "top_".$this->serverList[$i]['top'];
$this->serverList[$i]['check'] = isset($_POST[$actTop]) ? true : false;
}
// Check domains only if the base name is big enough
if (strlen($domainName)>2){
echo '<table class="dtable">';
echo '<tr><th colspan="2">Dominios</th></tr>';
for ($i = 0; $i < sizeof($this->serverList); $i++) {
if ($this->serverList[$i]['check']){
$this->showDomainResult($domainName.".".$this->serverList[$i]['top'],
$this->serverList[$i]['server'],
$this->serverList[$i]['response']);
}
}
echo '</table>';
}
$this->showWhoisForm();
}
$this->showFooter();
}
function showDomainResult($domain,$server,$findText){
if ($this->tr == 0){
$this->tr = 1;
$class = " class='tr2'";
} else {
$this->tr = 0;
$class = "";
}
if ($this->checkDomain($domain,$server,$findText)){
echo "<tr $class><td>$domain</td><td class='ava'>DISPONIBLE</td></tr>";
}
else echo "<tr $class><td>$domain</td><td class='tak'>NO DISPONIBLE</td></tr>";
}
function checkDomain($domain,$server,$findText){
$con = fsockopen($server, 43);
if (!$con) return false;
// Send the requested doman name
fputs($con, $domain."\r\n");
// Read and store the server response
$response = ' :';
while(!feof($con)) {
$response .= fgets($con,128);
}
// Close the connection
fclose($con);
// Check the response stream whether the domain is available
if (strpos($response, $findText)){
return true;
}
else {
return false;
}
}
}
?> 
