[PHP] Domain Checker

[Angellinho]

It uses the get_headers function to verify the existing headers. Doesn`t matter if it`s or no, if exists menas the domain is registered. If doesn`t exist, the domain is free. Atleast in my vision. =)

PHP Code:

<form action="" method="GET">
                        <label>Domain name (e.g. elitepvpers.com)</label><br /><br />
                        <input type="text" size="30" name="domain" value="<?php echo @$_GET['domain'] ?>" autofocus />
                        <input type="submit" value="Check" />
                </form>

PHP Code:

<?php
                if (isset($_GET['domain']) && $_GET['domain'] != '') {
                        $headers = @get_headers('http://'.$_GET['domain']);
                        $file = @file_get_contents('http://who.is/whois/'.$_GET['domain'].'/');
                        $html = explode("\n", $file);
                        if (strlen($headers[0]) > 0) {
                                echo 'Domain <span style="color:#C00;font-weight:bold">registered</span>.';
                        } else {
                                echo 'Domain <span style="color:#0C0;font-weight:bold">not registered</span>.';
                                $file = @file_get_contents('http://who.is/whois/'.$_GET['domain'].'/');
                                if (!preg_match('/appears to be available/', $file)) {
                                        echo '<br />Although who.is says it is.<br />Just check for any HTTP headers. :/';
                                }
                                unset($file);
                                unset($html);
                        }
                }
        ?>