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Networking With PEAR
Trawl the archives for PHP versions of common networking tools

| Doctor Who |

Want to create a Web-based interface to look up domain records? It's easy to do with the Net_Whois package, which can look up information on any registered Internet domain. You can download and install this package from http://pear.php.net/package/Net_Whois; once you've got it installed, give it a spin with the following script:


<?php
// include class
include("Net/Whois.php");

// initialize object
$whois = new Net_Whois();

// perform WHOIS query
$result = $whois->query("example.com");
print_r($result);
?>


You can easily modify the previous script to create an application that allows the user to enter a domain name for online WHOIS lookup. Here's how:


<html>
<head></head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
    Doman name: <input type="text" name="q">
    <input type="submit" name="Look up domain">
</form>

<?php
if ($_POST['q']) {
    // include class
    include("Net/Whois.php");

    // initialize object
    $whois = new Net_Whois();

    // perform WHOIS query
    $result = $whois->query($_POST['q']);
    print_r($result);
}
?>

</body>
</html>


Here the domain name submitted by the user is passed to the object's method. This query() method then requests the domain record from the appropriate domain registrar, and displays the response as a Web page.


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