How can I check if a domain name is registered? *PLEASE HELP!*

[lch_hosting]

Hello,
I've spent all morning downloading PHP scripts and searching forms and I still can't figure this out. I need a PHP script that checks if a domain is registered or not. If the domain is registed I want $result="yes" if it's not the $result="no" anyone know how I can do this?? Thanks for any help you can offer!!

[adamgeorge]

Hey,

there's prolly another way to do this, but my reply on your other question (converting domain to ip) would work for this anyway.

Have a read of that and see how you go. Just make a socket connection to a website that has a form for checking domains, and send a post header to it with the correct data. Then use a regular expression to get the relevant data out from the HTML the server sends in response.

Now, if there is a php function that I don't know about that does this too, that will be very embarasing. lol.

cya man
-Adam 🙂

[adamgeorge]

Here's a link for anyone reading this and wanted to know what thread I was refering to: convert domain to IP

[stolzyboy]

this may help you, but it only works with .com, .net, or .org

		<?
echo "<center>";
function whois ($a_server, $a_query, $a_port=43)
{
$available = "No match";
$a_query = str_replace("www.", "", $a_query);
$a_query = str_replace("http://", "", $a_query);
$sock = fsockopen($a_server,$a_port);
IF (!$sock)
{
echo ("<b>Could Not Connect To Server.</b>");
}
fputs($sock,"$a_query\r\n");
while(!feof($sock))
$result .= fgets($sock,128);
fclose($sock);

IF (eregi($available,$result))
{
echo ("<font color=\"#003399\"><font color=\"#003399\">Congratulations, <b>$a_query is available.</font></b></font>");
}
ELSE
{
echo ("<font color=\"red\"><b><font color=\"red\">We're sorry, $a_query is not available.</font></b></font>");
}
}
IF ($query != "")
{

IF (!eregi(".com",$query) AND !eregi(".net",$query) AND !eregi(".org",$query))
{
echo ("<font color=\"red\"><b><font color=\"red\">You must specify a .com, .net, or .org domain name.</font></b></font>");
}

ELSE
{
$server = "whois.netsol.com";
whois($server,$query);
}

}

ELSE IF (isset($query))
{
echo ("<b><font color=\"red\">Domain name left blank. Please fill in a domain name and try again.</font></b>");
}

?>
<br>


<div align="center">
<FORM ACTION="<? echo ($PHP_SELF); ?>" METHOD="post">
<table border=1 borderColor="#003399"  bgcolor="#eeeeee" cellspacing=0 cols=1 width=200>
<tr valign="top">
<td align="center">
<font color="#003399"><b>Domain Lookup</b></font>
</td>
</tr>
<tr valign="top">
<td align="center">
<font size=-1>To see if your domain is available, type it into the space below and press "Check Domain".</font><br><br>
<INPUT TYPE="text" NAME="query" MAXLENGTH="100"> <BR><br>
<INPUT TYPE="submit" VALUE="Check Domain"><br><br>
</td>
</tr>
</table>
</FORM>